Firstly, I like how you haven't capitalized any letters, as it reflects how you've layed the text out in little segments in the center of the page. Subsequently, the poem looks very light and pleasing to see.
Secondly, the title is very clever referring to the subject of this. Speaking of the subject, it was fascinating. I love poems that make you think and wonder. I perceived it as in someone is alone, there's no noise, they're resting beneath the tree. Maybe they're not so happy. And the one think they're resting on, the one thing they cling to, is the tree, that has everything they need/want ( metaphorically or otherwise ). That's what I took from it, anyway, but I'm half asleep and I could come back tomorrow and slap my head, telling myself his I got it all wrong :)
I liked the consistent subtle rhymes throughout this, too. It's very rhythmic and almost lulling - if this isn't going to send me to sleep in my current state, nothing will! Lol.
Thoroughly enjoyed this :)