Imagine minding your own business, just out fishing in the ocean, when you see a horse swim by. Curious, you follow it, as it swims the several miles back to shore, and then runs off. You have no idea where it came from or where it went.
This actually happened. (Reportedly.)
It’s Monday. I feel like the horse on Mondays. Out in the ocean, miles from land, no idea where I came from. Hopefully I’ll reach the beach eventually.