so it is day 15, i come to yoga, I ache and I am cold. Everything sort of hurts a little. And my yoga buddy fells this way as well. So we are both dragging........... and then we have this amazing Liz class with this very powerful and calming and focusing breathing exercise at the end............ and I am energized not in a caffeine way but in a deeper more grounded way. And I continue to discover more reasons why the experience is so meaningful.......