I both mediate and teach meditation techniques. I also am a fitness professional and a yoga teacher (slightly different things I think) and used to be a personal trainer. I don’t lift the way I used to, but I do lift. In fact I am interested in a wide range of practices for health and self discovery.
There has been a lot of interest in meditation and its benefits, and a lot of research in this area: reduction of aggressive behaviors in a prison population, increased focus in school children, ability to tolerate pain in people with chronic pain, and reductions in anxiety in those with high levels, and so on.
I haven’t read a ton about the interface of bodybuilding and meditation, but I would expect that the promotion of mental focus and reduction of performance anxiety would be likely, and would be beneficial.
For me it is all about balance. Lifting weights builds strength, riding a bike strengthens the cardiovascular system…. they are both important. Reading strengthens my intellectual abilities, Attending an amnesty writing session or carrying boxes for the food bank enhances my social and emotional self. Meditation sits at the center of all the aspects of who I am and draws them together.
I would say the peace and focus meditation, and yoga, have brought to me allow me to enjoy my fitness rather than to see it as punishment for things I’ve eaten or as only about reaching an endpoint defined in percent of body fat. When I am exercising my earbuds are off, I am in the moment, and I am engaged without worry about what others think or how I look, or how many minutes I have gone.