The moment we detach from our thoughts, feelings, dreams, desires, memories, dramas, imaginations, projections, and there's nothing else left to let go of, everything we can see disappears. Only the one who sees stays, like an empty sky.
The things come and go like the clouds, appear and disappear like the planets, born and die like the stars, but the sky remains the same, whole and untouched.
There's no way to leave a mark in the sky. We can grave something on the stone, draw a line in the water, which fades away, but there's no way to do so on the sky. When we can see beyond our mind, we can finally realize that until this moment there weren't any lines drawn on our soul.
It's eternally pure, eternally illuminated, immortal and will always remain the same.