Can someone explain mula sthapanam (rooting)?

Please explain mula sthapanam (rooting) and give some weblinks or youtube videos to get more details.
How it helps in removing blocks in pranic flow?
Also what is sandya bhasha?

By mula sthapanam do you mean Mulabandha the root lock? Bhandas are used for regulations the flow of prana.
Sandya bhasha literally means “Evening Talks”. Also called Twllight language I am not very sure but i heard that this language is used by tantrics to speak about their intelligible rituals.

Thanks Aman Singh. I hear that mula sthapanam is used to remove blocks in prana/nadi flow before doing nadi shodan. i am trying to find ways to clear blockages in prana flow in my nadis and am looking to find the steps involved. i know nadi shodana, but someone suggested i have to do mula sthapanam (rooting) before i could do nadi shodana.

regarding the sandya bhasha, i heard siddars and vedic scripts use that to hide true meaning of the intented truth in their palm manuscripts and also that each sylabble has a vibration on the level of our energy body.