Answer:
I am the hole in the night, the ever watchful eye. I return in a cycle, to enlighten the sky.
This is needed both for courage and hardcover books.
Only two backbones and thousands of ribs.
An open ended barrel, it is shaped like a hive. It is filled with the flesh, and the flesh is alive!
When the creeper passes, all the grass kneels
If itβs information you seek, come and see me. If itβs pairs of letters you need, I have consecutively three. What am I?