Keep in mind that yoga is essential for physical exertion
An important point: yoga should never cause pain. Your main focus should be deep and even breaths and exhalations.
Your soft gaze is also important: it allows you to relax and helps you cope with difficult poses.
When performing standing poses, don't forget to relax your toes.
If you don't have a mat, you can borrow one at the first class, but you need to buy your own.
You can find lesson programs on YouTube.
