In Tantra, sensation is the path. That means 

every sensation: hot and cold; pleasure and pain; sharp and blunt; agony and ecstasy; hope and fear; falling in love and having a panic attack.   Neither aspect of these polarities are ends in themselves. Tantra is simply, the one taste of all sensation.  To practise Tantra is to ride the energy of duality.
No-one can be complete  if they cannot experience pleasure and pain – and experience the one taste of the energy that is the ground of both experiences.

NC