Since I couldn't find a clear enough picture for showing 당신 the tree, I've added a video instead!
In certain scenes, you'll see a tall 나무, 트리 with glowing, clover-shaped leaves of gold, yellow, 라임 and other pretty colours. That's their version of the 'Yggdrasil'.
While I don't believe in Norse mythology and the tree's symbolism, I found this version to be very beautiful and magical!
I'd 사랑 to plant it in this forest. ^__^
(PS: There are some perverted elements in this OP and I'd like to apologize for that. xD)