Answer: I understand that when everything is beautiful, clean, and good it is very boring. There is no dirt, swearing, nothing like this is felt, no nobility stands out against the background of something nasty.
But don’t worry. I can’t explain it now, but you will always have a possibility to build good above evil. And when evil exhausts itself, everything will be filled with such good; infinity and eternity will be revealed to you.
When we study this, you will feel it. You are right about one thing: to be able to feel plus, you have to feel minus. These two states must necessarily support each other in their mutual realization.
From KabTV’s “Fundamentals of Kabbalah” 5/10/20