Answer:
Both punishment and sweet reward, It will befall both fool and lord. It is a spiritual scoreboard, Your every deed it does record.
A beacon from home to guide your way. It can be a lifesaver on a stormy day. What is it?
I'm the source of all emotion, but I'm caged in a white prison.
This only turns over once you have travelled very far. What is it?
It's usually found dried, but often kept slicker. Above another need, it's said to be thicker. What is it?
Almost everyone needs it, asks for it, gives it. But almost nobody takes it.