The feeling arose but I was unclear where it began, where it came from. It was a response to the shape and texture and solidity and pressure offered by the tree, or offered by my pressing myself against the tree. But I couldn't say that the feeling was entirely mine.
It was somehow caused in part by the tree and seemed to come into me, to arise between me and the tree as a sensation which I then experienced - as if it had a life of its own. And I couldn't exactly say that I received the feeling any more than I could say that I produced the feeling - it was partly active and partly passive.
Then, thinking about satisfaction (which comes from the Latin 'to make [or do] enough', I was interested in the making or doing. What about receiving enough as well as doing enough? That would be satisception. Or being enough? That would be satisessence.