When there is immersion in space, an abundance of drum sounds arise.Then the bindu is produced and the nāda becomes of multiple types.

Ākāśasamplave — immersion in space, dissolution in ether — describes the state where consciousness expands beyond bodily and mental limits.In this immersion, sounds of mardalī — a type of large drum — emerge in abundance (sandoha).

The emergence of bindu is significant.Bindu, point or drop, represents the maximum concentration of creative energy.In tantric context, it is the sublimated seminal essence that ascends.Physically it can be experienced as a pressure or pulsation in the center of the head.

Nādo nānāvidho bhavet — the nāda becomes of multiple types.Paradoxically, although the inner sound intensifies, it also multiplies in variety.The Bihar School explains that this is not regression but expansion: the yogi can now perceive different layers of cosmic sound simultaneously, like a trained musician distinguishing each instrument in an orchestra while listening to the entire symphony.