"Raising of Kundalini"
…But before we can enter the Bridal Chamber of God-the-Father (this is the allegory that Apostle Philip used [5,14])
— His Universal Abode — we should complete another significant stage of work — "raising of kundalini" .
Kundalini is Atmic (of Divine level of subtlety) energy that every one accumulated in all the best
moments of all their previous incarnations. It is produced and accumulated when we are in the states
of tender and refined love. But this energy does not get embodied every time the part of the soul that
does incarnate (jiva) enters into a new body, but gets "stored" in a sort of a
"money-box", which shape
resembles a gaunt balloon.
The size of this structure, if it is developed, is measured by kilometers; it is located in the corresponding subtlest eon inside our planet at the level of its mantle. The size of kundalini correlates with the level of evolutionary maturity of a given soul.
Kundalini and jiva of each man represent an integrated system, being connected together by a special energetic canal that is attached to the lower front part of muladhara.
Only those people can "raise kundalini" up to their bodies and use it in the spiritual work who have accumulated sufficient amounts of this energy, i.e. mature and worthy of entering the Abode of God-the-Father and Merging with Him.
So, as it must have become clear for the reader by now, kundalini is not
located in the muladhara chakra and all the more it does not have anything to do
with the coccyx, as some authors write in their books. And "raising of kundalini"
can be attained neither by beating the coccyx against the floor nor by jerky
dancing. Exercises on "raising kundalini" that Rajneesh was teaching his admirers were nothing but jokes.
The true "raising of kundalini" can be performed only after completing preparatory stages of work that were described in the book  at special
"places of power" (or without them) with help of a competent spiritual Master or directly by a non-incarnate Divine Teacher.
The purpose of the "raising of kundalini" is: first — to merge the accumulated individual Atmic energy with the Creator (Paramatman), second — to perform
"burning through" of the body cells with the Atmic energy that heals and transforms them and third — to learn autoidentification with Atman. The latter becomes possible when kundalini has come through the body (it should be performed in a horizontal position of the body) and formed a new energy accumulation behind sahasrara.
It follows from the above said that before starting to "raise kundalini" one has to think twice. Since if the energy of kundalini is transferred into Paramatman the person, as an individuality, loses it. And the only correct way out of this situation for him is to merge jiva with the Creator in the current incarnation as well. If this does not happen (for example, if the adept who has not established himself in subtlety enough reverts to coarse emotional states because of a certain reason (which not everybody is able to control) — the next time he incarnates without this invaluable energy potential and has to accumulate it again starting from scratch.