Mūla Bandha being the root lock. Locking your energy and breathe at seperate points in your body allows you to hold the level of raised energy (Kundalini) and continue upwards on the journey. Like locking into a checkpoint.
By understanding and practising mule bandhas with your breathe during sexual play, meditation, dance, breath work and just everyday life..
You are able to enliven your experience by raising your consciousness into higher realms.
Raising Goddess Kundalini. With the use of your PC muscle, breath and visualisation you are able to "lock" your energy at an upward rising stage which aids in the full activation of the Kundalini up your spine.
I recommend watching the chapter on raising your sexual energy to gain a deeper understanding of how beneficial Bandhas are in yogic practises.