Today I go to a Mysore class and I will practice primary. And then, and this I scarcely believe, and then I'm looking forward to a yoga free day. This tells me that for the time being my yoga is intensive.
Joy can be felt because there is sadness, too.
Relaxation can be experienced because there is tension, too.
I remember my first relaxation exercises in a yoga class 30 years ago. The teacher told us to engage the entire body as much as we can. Then we had to let go of it, we had to relax. This tension first had a positive effect on the level of relaxation.