Today's muscle miracle

Trikonasana (Triangle pose). Still raggedy, head is drooping BUT two weeks ago I absolutely could not

get my legs to hold me up in this pose. 

Perspective check: Beautiful example of Iyengar-style Trikonasana, courtesy of WIkipedia.

It’s crazy to me that some things are coming back online more quickly than others. Why is walking still so awkward and difficult?