It is told of the author of Tanya that he would stand in meditation and declare before God:
“I do not want Your Gan Eden, I do not want Your world to come—I only want You!”
There is a level on which a person attains a lofty state and desires to delight in God, so he is given the chance to delight in God.
But higher than this is the level on which a person desires nothing.
He waives even the pleasure that is found in the love of God and wants only “to [be] drawn into the body of the King”—to negate himself completely within God.
—Rabbi Adin Steinsaltz