Capturing Prana

The Serpent Power
When kundalini shakti is awakened and arises from her sleep, she is the vehicle for the expansion of consciousness, enabling the individual to fully develop his innate potential and rise beyond the mundane realm of birth and death to the level of divinity. Chela Buddhananda.
Raising Mula Bandha
Mula bandha is the force or energy created by lifting the pelvic floor and controlling the breath. It is the root lock and calls the fire within that causes everything to come alive, to move. Mula bandha increases flexibility and stimulates heat. By contracting the perineum and drawing the energy up from the base of the spine, one can intensify and direct the life energy, cultivating a
sense of heightened awareness and increasing vitality. Mula bandha ignites the flame of kundalini (cosmic energy), the serpent power. By bringing awareness to the core of the body,
mula bandha helps prevent injury. It guides you to move from your center, grounding you so you can become light and fluid in your yoga practice.
From : ashtanga yoga manual