The Rune Gebo (Or Gefu) literally means GIFT. It relates to a magical exchange or an act of generosity. Most certainly it can be an indication of unexpected fortune or a positive result coming out of the blue.
It is also a rune that indicates the balancing of energies, especially of sorting out the balancing of 'karmic energies'. If someone has been experiencing a period of negative polarity then Gebo can be the rune that foresees a period of positive polarity to balance the scales up so to speak.
Gebo can also be a portend of giving out good to receive good back.