Riddle me this

Wonderful Wally:
"I sit under a tree, Have lots of arms, I can not grab, but without me the core would die"

What am I?

"See through me clear, show whats already there"

What am I?

"Feed me and I will grow, Give me drinks and I shall die"

What am I?

2 of these I borrowed from someone else.

duncan124:

Its a shadow.

Wonderful Wally: None of them is shadow.

Molesto: Roots, Binoculars and Ego

Wonderful Wally: @Molesto

Yes, No no

cornish11: A window-Do I received a million credits free.

TheTrueRaven: Roots, a window, and Fire.

cornish11: Branches-Do I win now.

Wonderful Wally: Raven you are correct my dear

TheTrueRaven: Yay