Thor/Loki Art

Drawn for the Avengers Exchange. Shirtless but sort of almost worksafe.
( After The Battle )

Question for Yoga people

I am considering doing some yoga this year, but am ... horribly unflexible and out of shape. Will I shame myself if I just show up at a yoga class and flop around like a landed trout? Or should I use the internet to learn some poses and build up some strength first?

Are you expected to hold the poses for the required amount of time? Or do people 'tap out' and sit quietly/stretch while everyone else does the downward dog for an hour?

also? I've done some looking on the internet, and uh ... they all seem pretty ... spiritual? I don't want to do a sanscript prayer before I stretch. I just want to stretch.