In Rick's investigations, he claims to have been told that big, strong, old trees can make him healthy again. So whenever I hang out with him and we happen to pass a big tree, he's got stop and lay his hands on it for a few minutes, and then hug it for a few minutes, and basically just rub all against it. He says according to Chinese medical tradition it's supposed to re-balance his chi if he hangs around trees and nature. Anybody ever heard this before? Is it really necessary for him to hug and lays his hands on trees, or has he misunderstood this tradition?