Gebo (yay-bow) is the seventh rune of the first aett. It represents a gift or exchange (including that of hostages), and reminds us of debts that are due. We constantly owe to the gods, we must honour them, give offerings, and honour our ancestors. We must be grateful and give back.
It represents legal contracts, the Law of Wyrd (similar to karma) and reminds us that what you put out comes back to you.