Don' t be a Candle
It basically means "Think from your position".
When a candle is lighted, there is shadow at its bottom. You can't see your feet, your root and what you are standing on.
It came from a debate between a king and a monk.
The king had so high ambition that he did not care for his people. He only went forward.
One day, a monk came to visit the king at night and lighted a candle.
After some staring, the monk said "Don't be a candle".