To dream that you are crawling implies that you have put much deliberation and research in your pursuit of your objectives. It may also mean that you are not striving as hard as you should be. You can achieve more than you give yourself credit for. To dream that you are crawling out of a wreck or ruins symbolizes your determination and persistence.
To dream that someone is crawling towards you implies that you want to dominate a situation or manipulate it for your benefit.