Excerpts from a lecture given in 1969
I have recognized, with the blessing of my master, that it is possible to be healthy, to be happy, and to be holy while living in this society. But you must have energy so that your dead computer may live and pass on the signal to you, and compute all that you want to do in this society. We call this energy kundalini, which has been blocked in muladhara, the lowest of all chakras, or lotuses.
Yet, there is a way we can set our computer to be in direct contact with Him, the Biggest Computer, and all things must then work automatically. That cannot work until the kundalini, the spiritual nerve, breaks through the blockage at the muladhara, travels up, and reaches the stage that you may have Superconsciousness in Consciousness.
You must generate the pressure of the prana and mix it with the apana. Thus, when the two join together, you generate heat in the pranic center. With this heat of the prana you put a pressure or charge on the kundalini, the soul nerve, which is coiled in three and a half circles on muladhara. (Kundal means "the curl of the hair of the beloved." It does not mean snake or serpent.) This will awaken it so that it may pierce through the imaginary chakras and pass ultimately through jalandhara bandh—the Neck Lock—the final blockage in the spine before the energy reaches the head.
© The Teachings of Yogi Bhajan
A lecture excerpt from The Aquarian Teacher: KRI International Kundalini Yoga Teacher Training Level One Textbook.