Some would call this 'God'. Daoists would call it that which can't be named...or the DAO in order to call 'it' something. This is the emptiness...the nothingness from which everything springs forth and to which everything returns. It cannot be experienced with the senses...not seen, heard, tasted, smelled or touched, and yet it resides in everything. And if one is able to quiet the monkey mind (incessant mental chatter) then it is possible to 'feel/sense' this emptiness...and it is the fullest feeling there is! Talk about paradoxes!!!