From Wikipedia’s expert knowledge base:

The Triforce (トライフォース Toraifōsu?), also called “Power of the Gods” (神の力 Kami no Chikara?) and the “Golden Triangle” (黄金の大三角 Kogane no Dai Sankaku?) Twilight Princess, is a triangular sacred relic that represents the essences of the Golden Goddesses. It is made up of three smaller triangles known as the Triforce of Power (力のトライフォース Chikara no Toraifōsu?), the Triforce of Wisdom (知恵のトライフォース Chie no Toraifōsu?) and Triforce of Courage (勇気のトライフォース Yūki no Toraifōsu?). Each of these embody the essence of their respective goddess, and bestow certain boons on their bearers. In most of its appearances, the Triforce or its pieces, manifest as a marking on the hands of their bearers. These markings resonate when near each other, and the Triforce pieces can emerge from their bearers.
When united, the Triforce allows one who touches it to make a wish that lasts until he dies or the wish is fulfilled. However, if the one who finds it does not possess a balance of the three virtues it represents, the pieces split into its three components and the finder is left with the one which represents the characteristic he values most; the other two pieces do likewise with two other characters “chosen by destiny.” Ganon makes it his goal to obtain the Triforce in various games, often having a single piece himself (The Triforce of Power) that he uses to further his goals.
The Triforce of Power which is positioned as the topmost of the three, holds the presence of Din, the goddess of Power, and radiates the physical, and magical power of its bearer. It is associated with Ganon, who is power-hungry. The Triforce of Wisdom, positioned on the lower left, embodies the essence of Nayru, the goddess of Wisdom, and amplifies the wisdom and mystical powers of its bearer. It is associated with Princess Zelda, whose great wisdom brings peace and prosperity to Hyrule. The Triforce of Courage, positioned on the lower right, embodies the essence of Farore, the goddess of Courage, and seems to amplify the courage and adventuring skills of its bearer. It is associated with Link, the main protagonist of the series, who bravely defends Hyrule from Ganon.

Haha, ok, that might be the silliest thing I’ve posted in a while.