There was a young angel who was given the task of bringing the Truth to planet Earth. He was so eager to share the Truth with others that he didn't listen to instructions. The Truth was presented to him in the form of a crystal sphere.
He flew off with the sphere securely held in his arms. When he came upon Earth, in all its beauty, he thought about how he would give the Truth to all the inhabitants. Surely they would be grateful. He sped toward the surface of the planet. As he attempted to land, he was unable to adjust to the spin of the planet, so he stumbled. The crystal sphere was dislodged from his grip and crashed upon some rocks.
A wind came along and scattered the millions of tiny shards across the planet. Ever since that day, people have been finding those shards and saying, "I have the Truth!" or "Here is the Truth!"
In fact, nearly everyone has a piece of the Truth, but no one has the whole Truth.