I forgot to mention

The quality of light through the leaves when the sun is rising or setting and directly perpendicular to the hanging sheets - on maple or sycamore especially - where the leaves are backlit intensely and come to a full glow of life - green so vibrant it has turned to gold, red from fall merging with fire. The first time I noticed such a spectacle was several thousand feet up in the mountains, waking on a June morning in a sleeping bag outdoors in camp next to a friend after staying up late discussing life - the sun and chill air together compelled consciousness and I could watch the path of the photons creepingly traverse the ground until suddenly we were aligned and leaves came to life. It was stunning and mine alone and I still look for that moment, especially in fall, and revel in its presence.