It is a stage that all of those who are striving and competing are competing for it and it is a kind of life that if you are missing it you are one of the dead.
It is a light that if you are without it you are in and ocean of darkness.
It is a medicine or cure that if you are without it, your heart becomes a place of sicknesses.
It is a sweetness or pleasure that if you are without it,
life becomes a thing of worries and of pain.
“And verily for everything that a slave loses there is a substitute, but the one who loses Allah will never find anything to replace Him.”
[Ibn al-Qayyim ]
Taken from Here