Contortion Wiki

Rooted in Hindu traditions, yoga is a set of philosophies and practices aimed at exploring concepts of mind, spirit, and body that can't be clearly differentiated.

And therefore, people try and do that. Differentiate. A whole lot.

Part of the physical discipline stuff is recognizable Asana - originally just meaning “seated”, which doesn't even imply you doing a lotus, that name now covers all the various named moves.