But there is also so much contrast between the two. Ashtanga yoga could not be any more disciplining and regimenting for body and mind where improvisation seems to be the complete opposite, exploring freedom and spontaneity of creativity and movement. Yoga is an internal practice. An internal exploration of time, energy and sensation. Improvisation is an external expression of movement and and an outwards exploration of time and space. Is it just that they satisfy different aspects of me or is there a link that I don't see?