A full-grown weeping willow is one of the most majestic sights known to mankind. There is literally a curtain of greenery which must be pushed aside to get in. And once you're inside, nobody can bother you, nothing can touch you, it's just you and the tree (and maybe someone else, if you brought someone along). Memories of days under the boughs of the weeping willow have made it the most sacred tree to me.