As I did not read much about it either, I can only give you my personal experiene.
I find some sort of connection between the physical and the spiritual in nature and therfore in outdoor sports or in working with animals. I tried going to a fitness club as well as playing in a volleyball team and I hated it. Why would I throw this stupid ball over a net over and over again or lift weights just to train my muscles? Team sport sucks and fitness clubs are so damn boring.
Instead, I adore the rough weather and the loneliness in the mountains, the temperament of a wild horse or the deep darkness of a pine tree forest. It does not feel like sports, it's just a natural movement.
If you like Yoga, you could take your Yoga mat out in the forest to a sacred place and enjoy the resonance with this place.
Brother Aquila wrote a excellent Blog about the relation of occultism and nature:
https://sieidilodge.wordpress.com/„To exploit and reinterpret a commonly misunderstood quote from the Bible I hereby state that we should ”fill the earth” i.e. our physical bodies – linga sharîra, the outer vessel of Àtma, with buddhi and then we’ll ”rule over the fish in the sea and the birds in the sky and over every living creature that moves on the ground” for this is symbolic to the unity of our development in connection with the animal kingdom and what our position and responsibility toward them and nature is.“