Answer:
Maritime marauders
In many hallways you would stand, if not with this in hand.
What is something that can go up quite easily, but is not as easy to bring back down?
There is a man in a 4 story building. He jumps out of the window and is unharmed. He used no padding, and had no harm done. How?
Makes dough grow
I'm the source of all emotion but I'm caged in a white prison.