None.
You don’t need anything for yoga. You don’t need to be flexible. You don’t need a mat. You don’t need special clothes. You don’t need strength or endurance. And you don’t need a lot of time.
Come as you are. Relax, undo, enjoy. Do bring desire and leave concerns behind. Be free.
Bring yourself. Be yourself: happy, excited, nervous, sore, uncertain, uneven, weak, strong, tight. Needing. We move for what you need, what feels good, what does you good.
Comes as you are. It is good. This works, no barriers.