A little bit of truth can bring us to very great truth.
Our personal “point” of truth gives us contact with Supreme Truth, G-d’s Truth.
Some light sources shine with their own light, like the sun. Others do not shine with their own light, but reflect the light coming from an external source, like the moon.
In the same way, the “lower” truth in all of creation channels the “higher” Truth, G-d’s Truth.
Rebbe Nachman in Tsohar: Light, by BRI