A description of Kundalini Shakti from the Jnaneshwari,

 Saint Jnaneshwar’s Bhagavad Gita

 

1.               Then with a serene mind, and becoming fearless and firm in the vow of chastity, the yogi should control his mind, thinking of ME and remain devoted to Me.

Then the active imagination subsides and the functions of the body and the mind stand still.  Thoughts of hunger and sleep are not remembered.  The in-beath which was confined by the anal constriction (mulabandha) moves backwards and being excited and puffy, it grows in its place of confinement and strikes on the naval chakra. (manipura).  Then this expanded in-breath churns the belly from all sides and removes the impurities collected there from childhood.  But instead of rolling at the bottom, it enters the belly and destroys the bile and phlegm therein.  It consumes the seven humors without leaving a trace, pulverizes the rolls of fat and draws out the marrow of the bones.  It calms the nerves and makes the limbs loose frightening the spiritual aspirant, but he or she should not fear.  It gives rise to illness which it cures instantly and mixes together the liquid (bile, phlegm etc.) and solid (flesh, marrow etc.) parts of the body

(216-120). O Arjuna, next the heat generated by the posture wakes up the serpent power known as Kundalini like a young snake asleep with its mouth down, bathed in red kumkum and resting on the three coils of its body.  She is like a streak of lightening or a twisting flame or a polished band of pure gold.

Confined in the naval chakra the Kundalini wakes up when she is pushed by the anal contraction (mulabandha) (221-225).  As if a star had fallen or the sun had broken loose from its position in the sky or a seed of light that had been planted begins to sprout, this serpent power uncoils and stands up relaxing her body on the naval centre. She has been hungry for a long time and when she awakens she opens her mouth wide.  She sucks in the in-breath sitting under the heart lotus and begins to eat the upper and lower flesh (226-230). She easily swallows flesh wherever she can find it and takes one or two mouthfuls of the heart's flesh also.  Then she searches for the soles of the feet and palms of hands, and piercing their upper parts she causes the limbs and joints to shake.  Thereafter without leaving her place, she draws out the core of the finger-nails and cleansing the skin clings to the skeleton.  She cleans up the bones and scrapes the fibers of muscles, so that the roots of the hair begin to wither.  Then she quenches her thirst by lapping up the seven humors, and makes the body completely dry (231-235).  Next she forcibly sucks in the out-breath which flows out of the nostrils to a length of twelve fingers.  She thereafter simultaneously pulls up the in-breath as she pulls down the out-breath and when they meet only the sheaths of nerve-centers remain.  Both the breaths would have mingled at that time but the Kundalini, being uneasy for a moment, asks them to keep away.  O Arjuna, this serpent power eats up all the solid stuff in the body, and leaves nothing of the watery parts also. When she eats these solid and liquid parts of the body, she becomes satisfied and remains calm in the spinal cord (236-240).

In this state of satiation, she turns her fiery venom into sweet nectar and sustains life.  It cools the body internally, which regains the strength it had lost. The flow of energy in the nerves stops and the nine life-breaths except the prana stop and cause the body to lose its functions. Then the breaths flowing through the left and right nostrils mingle, the knots of the three lower chakras (nerve-centers) become loose, and the six nerve-centers become separated.  The sun and moon currents of the breath, which flow through the nostrils, are so subtle that they cannot be felt on a piece fiber that held in front of them.  (241-245).  The intellect looses its luster and becomes still and the sense of smell in the nose enters the spinal cord along with the Kundalini Shakti.  The vial of moon-nectar situated above flows into the mouth of the Kundalini.  The nectar fills her and then spreads into the body which with the help of the prana is saturated with feelings of intense bliss.  As wax, placed in a red-hot mould melts and fills it up, so the body looks godly as if it was made of reddish light covered by a thin skin (246-250).  As the sun comes out in full splendor when the clouds scatter so the dry scales of the skin all off like husks from grain and the body looks as it had grown out of a crystal or was carved out of a precious gem.  Sometimes it seems as if it were a form dressed up in the red gown of sunset.  Such is the beauty of the inner light.  Then the body becomes supremely peaceful and glows with an unearthly luster (251-255).  When the Kundalini drinks the moon nectar it is a picture of delight and a form of great happiness like the bud of the golden champak flower or the autumn dew reflecting the harvest moon.  Even the god of Death stands in awe of that body.

Then old age recedes, youthfulness takes a leap backwards, and the childhood which had long gone returns (256-260).  Even though the meditator looks so young he or she can perform great feats with unexcelled courage.  Even as sparkling buds come out from the leaves of the golden tree new lustrous finger-nails come out of his body.  He also gets new teeth, but they are so small that they look like two rows of pearls set in the mouth.  New hair with atom-sized pearly tips grow on his whole body.  The palms of the hands and the soles of the feet become red like red lotuses.  It is impossible to describe the clarity of the eyes (261-265).  Just as an oyster cannot contain the pearl when it grows too large and opens wide its shell the power of sight… instead of being confined to the eyes… goes out far and wide pervading all of heaven.  O Arjuna, the body takes on a golden color and possesses the lightness of wind because the Kundalini has devoured its liquid and solid parts. 

Then the yogi can see beyond the seas, hear the sounds of heaven, and comprehend the desire of an ant.  He can ride on the wind, walk on water without wetting his feet, and in this way he acquires many miraculous powers (266-270).  Holding the hand of prana and climbing the steps in the region of the chest, the Kundalini reaches the heart centre through the spinal cord.  This Kundalini is the mother of the world who illumines the self and gives shade to the sprouted seed of the universe.  It is the embodiment of the formless Brahman, the cask of Lord Shiva, the main spring of the sacred syllable Om.

When this youthful Kundalini enters the heart-centre, she begins to utter unbeaten sounds. The sounds fall lightly on the ears of intellect which is very close to the serpent power (271-275).  In the cubicle from which these sounds emanate, they manifest themselves as words drawn on Om.  As long as the prana remains these rumbling sounds, like cosmic clouds, are heard in the heart chakra.  With the rumbling sounds the Brahmarandra at the top of the skull opens into a vast space resembling the petals of a lotus in which the Self resides above the body.  (276-280).

The supreme Kundalini then enters this abode of the Self and offers the intellect that she consumed on her journey as if it were a vegetable dish and it is eaten completely leaving no trace of dualism.  When Kundalini enters the heart center she looks like a golden chain of water flowing from a spring of light.  Next she casts aside her golden garment and gives up her fiery form to become a subtle air like a candle extinguished by a breath of the wind or lightening disappearing into the night sky.  Suddenly she dissolves into the lotus of the Heart and merges into formless Shakti.  Although she is called Shakti is still a subtle air (Vayu).

At this time the meditator is not aware of the Nada, or the Bindu or of the Kala jyoti.  At this time breath and mind control and meditation die.  Kundalini is the crucible in which the gross elements crumble. (286-290). The idea I have unfolded here that the gross body is swallowed by the Kundalini is the contention of the Natha bhaktas and is disclosed by Lord Krishna, an incarnation of Vishnu. 

1.         By applying himself thus constantly the self-controlled Yogi attains peace consisting of infnite bliss, that abides in Me.

When the Shakti loses her power, the body becomes invisible to the world.  But it looks like the sky with limbs or a skinned banana tree whose core is revealed.  When it assumes this form the yogi is a sky-rover.  When he attains this state, he works wonders in the world.  When he walks a retinue of eight powers follows his every step.  But of what use are these powers to us, O Arjuna?

O Arjuna, the element of earth is dissolved by water, water is dissolved by fire and wind blows out the fire in the heart.  The wind remains in the form of the body which is absorbed in the sky of the Brahmarandhra.  (296-300).  Shakti retains her form until she becomes one with Brahman.

Now she is not known as Kundalini, but takes on the name 'Aerial' (maruta). Then she leaves the by the jalandhara bandha and breaking open the end of the sushumna nadi she enters the cidakasha of Brahmarandhra.  Placing her foot on the back of Omkara she crosses the second stage of speech known as pashyanti and piercing the half crescent matra of Om enters the chidakasha, the Heart space, as the river enters the sea.  She makes herself steady in the Chidakasha by the firm conviction 'I am Brahman.’

The destruction of the veil of the five great elements causes the union of Shiva and Shakti.  And along with the chidakasha she becomes merged in the bliss of Brahman, just as the sea water evaporates to become clouds.  Just as clouds pour down into rivers and ultimately return to the sea, the embodied self enters the abode of Brahman and becomes united with it.