By loving your brother you will shed light on your own life-path.
“…because the night is over and the real light is already shining. Anyone who claims to be in the light but hates his brother is still in the dark.
But anyone who loves his brother is living in the light and need not be afraid of stumbling; unlike the man who hates his brother and is in the darkness, not knowing where he is going, because it is too dark to see.”
Saint John 2:8-11