The most challenging part of yoga is not about touching your toes or balancing on one leg. It can occur in the simplest poses - a child's pose, a deep stretch, even in savasana the final relaxation. It is about surrender.
If COVID has taught us anything, it is that so much of our life is beyond our control. To make ourselves feel safe, to have some ground beneath our feet when all is swirling around us, we tighten, close down and contract. This gives a perception of control and holding onto something...but instead it does the opposite.