“This is how we learn to see in the dark. Through our stumbling and our suffering, G-d trains us to see the good that hides in the ordeals and dark pits of our life. He sensitizes our palate… to even minute concentrations of hidden good. It is easy to see G-d in the dramatic fire of Sinai, but it is a whole other level of maturity to see G-d in the darkness.

It is possible that the sin of the Golden Calf was a heavenly set-up, for exactly this purpose, so that its repair would force us to develop the priceless capacity to see in the dark (Tsidkat HaTsadik 154).

… Let us learn to see in the dark, so that even the slightest sliver of good becomes visible to our heart/mind and gives us the strength to rise and shine and turn darkness into light.”