Gita says - there are 4 aspects of God. Parambhava, the absolute aspect called Brahman, it is the unmanifested avyakta form. His coming into manifestation results in subjective aspect (static) Adhyatma bhava and objective aspect (dynamic) Bhootabhava. For instance a person in Trance,
his consciousness is absorbed into the absolute Parambhava, he loses all consciouness of his own self and that of this surronding, he knows not what he is doing, while when he is at work he is conscious of his own, and cognizant of the work at hand. During trance conscioness reverts to absoluteness, and at the time of action it comes into manifestation as Adhyatama, the subjective and creative - Bhootabhava, the objective. The static real or Adhyatamabhava never changes and eternally and incessantly radiates power, knowledge and bliss. The creative aspect Bhootabhava must necessariliy function as energy in the dynamic sense; as the word energy gives an impression of an inanimate power and the sanskrit term Bhootabhava or the creative aspect conveys the idea of a living consciouness with active power, the later is represented as female divinity.
The idea of Absolute is as old as Vedas. Rigveda Ch. 10 Nasadiya Sukta
नासदासीन्नोसदासीतदानीं नासिद्रजो, नो व्यामा परो यत् |
किमावारीवः कुह कस्य शर्मन्नम्भः किमासिद गहनं गभीरम् ||
Neither Asat there was, nor Sat there was then,
Neither was motion, nor the heavens that are beyond.
What covered? - Darkness ? whose governance ? -
What existed then? The deep and profound - Absolute.
Gita also defined Brahman as the beginningless, neither Sat nor Asat.
It has been said above that the first creative principle is the Bhootabhava, which emanates from the Adhyatamabhava. Now let us see the nature of Visargabhava. Adhyatamabhava which is life in static form, eternally and incesstantly radiates life without itself suffering any loss or change. Now the first emanation is the Bhootabhava or Life in the dynamic form. The first is the center and the second its radii ever shooting from it, forming a sphere whose circumference is nowhere, or merges into the infinity and the center is everywhere all over the creation. In vedic literature the dynamic form of Life is named PRANA. Thus pranan is the dynamic life energy as the first emanantion of the Adhyatambhava and is the same as Bhootabhava.
With the cessation of desire the radiation would also stop, and the creation would revert to its cause. For creation the radiating dynamic energy of Bhootabhava begins to manifest and becomes simultaneously the instrumental cause as Prana itself as well as the material cause of the whole universe, manifesting both the animate side of the world and it's in animate side. The animate beings are therefore called in Sanskrit ‘Praninah’ i.e. possessed by Prana. Bhootabhava on account of its inherent propensity for creation enforce its self from the highest Mahat to the lowest early stone and gets involved in variety of forms. The creation of names and forms is there for the work of Bhootabhava and is called the Visarg.
पुर्णमदः पूर्णमिदं पूर्णात्पूर्णमुदच्यते |
पूर्णस्य पूर्णमादाय पूर्णमेवावशिष्यते ||
The Whole is beyond, Whole is this (creation)
From Whole the Whole emanantes
Of Whole the Whole having been taken
The Whole is even left over
The Adhyatma bhava is complete in finite whole, and creation the visargabhava is also complete infinite whole. Bhoota Bhava emanates from the Adhyatm Bhava the whole from the whole not affecting the wholeness of the parental whole. During the creative involution, the creation is a complete infinite whole and does the involutionary form of Bhootabhava is also a complete whole, of whole the whole having been taken off during the involuntary course the whole even then is left over. Thus the Residual is also a complete infinite whole. In finite potential energy should be capable of executing an infinite expanse of work when dynamic and unlike a spent force, should remain in its infinite entirety as residual. In Atharva Veda, the residual whole is named Uchhishtha Brahman.
Ancient sages of India were lovers of fine arts. They conveyed their philosophies to the educated through life like pictures, poetry and music. They talked in allegories and like to put before the masses the subtle ideas of philosophy not otherwise comprehensible to man in the street. The residual cosmic power represented as a serpent is one of such expressions where jumbling of disconnected ideas of later commentators and storytellers has resulted in. That which is the Brahman of Atharva Veda assumes the mythological form of the Sesha serpent the Lord of all serpents and the support of the universe and is called Shesha because of its residual aspect. He is also called the Ananda the infinite. In the case of all living beings, the resident power takes the individualised form of kundalini Shakti, also a serpent like power represented as coiled around Shiva Lingaa 3 1/2 times we tell in her mouth placed at the top. The seat of kundalini in the sleeping or potential state is at Muladhara that is at the base of the spinal column. Re-presentation as serpents indicates involutionary because of the dynamic Visaragabhava.
As a residual the power represented as Sheesha or kundalini is in the potential state and not a spent force after the creative cycle is complete. A force that has been exhausted in affecting its purpose cannot without a potential residue will serve as a support for its product and as such the Uchhishtha aspect of Brahman in its potential state supports the universe. It possesses an in finite potential 80 for imparting a push to the static power for upward evolutionary turn to revert back to its source when aroused. Mythological representation of the Bhootabhava before creation is in the form of female human form of mother goddess, but as residual the representation is in the form of serpents.
Vedic Uchchistha Brahman figures in Puranic mythology as Sesha serpent and is the resident serpent power left over after the creation is complete and the corresponding static adhyatm is pictured as Narayana resting on the serpent. In individual living beings the individualised shesha leftover after the physical bodies buildup is described as kundalini serpent which support the individual body having her sit at Muladhara the route or basic support of the spinal cord. When a roast the power and coils and takes its march back to the evolutionary side loosening the bondage. She has sent the spinal now and displays her visions during the march of accent. In Cerebrum she comes into communion with Lord and merges into the static real.
At other times when she's not in communion she resides in the Vishuddhi Chakra in her purity. When awakened she is experienced by Yogins as a spiritual guide who directs, controls, governance and leads the aspirant on the spiritual path to moksha like a living conscious divine help meet, with vigilant hand helping her favourite all the 24 hours in sleep, dreams and waking state, and at times takes him up for the Samadhic communion with her lord. She then works not passively as when sleeping but as divine mother on all the three planes of physical, astral and causal bodies. Her movements are then felt her voice heard and presence experienced.
The Serpent Power (Kundalini) having coiled up in three and half turns resides in the base of spinal column (in the Mooladhara). Her original nature is similar to the light of crores of lamps put together. Its awakening is quite essential. After the initiation the initiated feels the presence of the Serpent Power (Kundalini) in the form of vital Life Force (Prana) through the automatic process of breath-control (Pranayam). As she remains dormant (asleep) on the bulb at the base of spinal column (Mooladhara), the aspirant remains in ignorance. Though the aspirant is the form of God Shiva, the supreme power in him remains covered. The supreme power generates Life Force (Prana/Vital air) breath, Fire (Agni), vitality (Bindu) and sound (Nada). To gain the knowledge of this power (Serpent Power) one has to surrender himself completely to the spiritual master for his favourable grace.
Some people call this power (Shakti) as the Primal – Fundamental Power, some as sushumna, some as Kundalini (serpent power), and some as Sarasvati, Deity of learning. She is also known as Mahamaya, Mahalaxmi, Mahadevi, Sarasvati and invisible Fundamental Power (energy). Because of Her presence, one’s body, mind and breath (Prana) become active. All the activities of the world spring from this Supreme Power. Aspirants who are not initiated do not get real benefits of their efforts of practising meditation, of knowledge of scripture etc., of Yogic practices, of recitation of God’s name, of penance, of worship of God or of any kind of religious service.
Therefore it is absolutely essential for an aspirant to get initiated. Our physical birth is due to our mother whereas our spiritual birth is due to the initiation of our spiritual master. Once the Serpent Power is awakened, Yogic Practices, recitation of holy name (Mantra), worship of God, reading of holy verses, in whatsoever way they are performed, yield good results. The life of the initiated person turns into the one full of spiritual joy.