So, most of the time my yoga isn't super meditative. I put a lot of focus into my breathing and getting a good stretch in. Once I get to the point where I'm not wheezing while holding a pose, then i'll think about meditation during the process because at the moment it's a purely physical effort. I do it all myself, I have a few routines that I do regularly that I found on youtube, and I try to do lotus flexibility exercises as close to daily as possible. I'm not opposed to doing a class, but I want to see what I can get done on my own first. I do know that yoga is so highly thought of medically that they have versions that are adapted for people in wheelchairs. I can definitely see why it would benefit any kind of endurance athlete. Some bodybuilder guys will say you shouldn't stretch too much before a hard, heavy weights workout because you don't want your joints as loose as they can be, but that hardly seems like a problem for cardio.