In Hindu metaphysics, Bindu is considered the point at which creation begins and may become unity.
Krishna said in the Bhagavad Gita XV/13, "Becoming the nectarine moon I nourish all plants".
[11] Bindu is identified with the semen, and it is controlled by techniques such as Viparita Karani and Khechari Mudra.
When the Vishuddha is inactive the fluid flows to the manipura chakra, where it is consumed (leading to physical decline).
[12] Through practice of Khecari mudra, a practitioner can manipulate the flow of the fluid from the lalana to the Vishuddha (where it is purified to amrita).