Sushumna Nadi , The Middle Path; Parasympathetic Nervous System
Pure sattva is clear like water, yet in conjunction with rajas and tamas it makes for transmigration. The reality of the Atman becomes reflected in sattva and like the sun reveals the entire world of matter.
Shankaracharya
Wise people, even though all laws were abolished, would still lead the same life
Aristophane