Power, Wisdom, and Courage.
The Triforce is a key part in Legend of Zelda. It’s three parts represent the three things above, power, wisdom, and courage, but there is a hidden piece, an underlying force in all of it.
The inverted triangle, the space between the other three pieces. When you notice it, the mentions of faith appear quite often in the games; the owl in Majora’s Mask wants you to have faith as you jump onto the invisible platforms, one of the Goron Elders talks about having faith in Twilight Princess and so on.
Let’s think about it.
What is power and courage without the wisdom to not blindly run into things? Or wisdom and power without the courage to act? Or wisdom and courage without the power to accomplish difficult tasks? But what are any of these without faith? The faith in yourself to trust your wisdom, the faith in the power that you have to know that you can accomplish what you need, and the faith that you can make it through with your courage, and all together you need the faith of what you believe in to hold all them together and put them to use. Faith is intangible, no way to explain it, but it’s there in the heart holding everything together as it holds the three pieces of the Triforce.You can’t see it but you know it’s there, and when you lose faith it all falls apart and you lose your power, wisdom, and courage.
When the people of Hyrule all lose their faith, that’s when the Triforce breaks, and Link restores people’s faith in the goddesses and in their lives as he goes along and then the Triforce will stay together.
That is where the true power of the Triforce comes from.