“All the ‘great secrets’ under the mountains had turned out to be just empty night: there was nothing more to find out, nothing worth doing, only nasty furtive eating and resentful remembering. He was altogether wretched. He hated the dark, and he hated light more: he hated everything, and the Ring most of all.”
(The Fellowship of the Ring, chapter 2)

This description of Gollum’s condition is a compelling description of the emptiness of sin. Doesn’t this resonate, in a terrible way, in your own soul? This is a helpful picture for me to keep in my mind to fight temptation.