Move your joints every day. You have to find your own tricks. Bury your mind deep in your heart, and watch the body move by itself.
Don't teach too many postures; just the main ones, and hold them for a long time.
Be kind to everyone; forgive everyone everything.
Let the skin be like water, let the flesh hang from the bones.
There is a time to be still in the pose.
Everything depends on your mental attitude.