Here is how it can help. It makes us aware of breathing to calm and soothe the body and mind. This is part of meditation as yoga can be part of meditation. It also helps us to focus on our all important spine, bend it, strengthen it.
The teacher is soft spoken, gentle, easy to follow. The exercises while resting on the back are excellent, easy to remember so we can do them anytime in just a few minutes. Nice seated poses too including a modified reverse inclined plane. TY for the video, a great start.