Pearls
When you sense that you have fallen because the spirit of your ethical awareness is weak, consider this: you have to draw forth precious pearls from the depths of the abyss. When you know this, then you will rise. You will renew your abilities with strength and tranquility. You will approach the ever-lasting light with more capability than you ever had before. This rule applies to the entire generation. It governs reality forever.
Orot Hakodesh III, p. 252