My previous house, which was a pretty big "modern" house, on 7th floor, had no tree in view, I didn't realize how it affected me, but everyday I grew more cluster-phobic, days went I was having sudden panic attacks, with sudden imagination of being stuck in a closed box.
Now we changed to a much smaller house on 5th floor, it's so much older than the previous house, but it has a lake side view full of trees, I can look out and see them from my window.
And now I realize in some extent, how badly the previous house affected me. My cluster-phobic episodes are completely gone, and I don't have those stuck feelings any more. I know I still have it, i feel it coming if the door knob gets slightly stuck, and takes little bit more time, but other then that none of the actions that used to cause it, not causing it anymore.
In our city we build jail cells for house in the name of safety. So all windows of the house are grided with no way to get out of the house in case the front door caught fire. But these trees gives me peace. I don't have to look at them, knowing that they are just by the window, makes me so much relaxed.
I still can't fathom how people can cut them down