Wires, What are they?

I don't know anything about wires, where they are from and where they are going. The picture shows a few wires that need to be attached somewhere, yet I have no clue as to what to do with them.
They are on the drivers side of the firewall.
Do they connect to a switch?
Do they have something to do with the starter?
Is there a box that they connect to?
I can't start the car until they are connected.
I do not know how to read wiring diagrams so they are useless to me.
Can someone help me!!
Thank you,
Sara