I'm like the dark which will never see the light. 

I'm like the like the fire that is always burning. 

I'm like the ice, hard and cold.

I'm like the deepest cut that bleeds forever. 

I'm the pain that keeps hurting.

I'm the memory that never fades.

I'm like sadness which keeps coming to remind you life is not fair.

I'm the deepest hollow with infinite depth.

I'm like a story that will never end.

I'm the one to whom no one can be compared.