Said the Soul - But I think one needs to understand what is the completeness that a person will achieve when he completes his work and rests from his effort, because then we will understand retroactively all that which we mentioned. And the reason for this is simple and clear, for is it not that in the end man will achieve that which he was lacking in him from the beginning, and since it was lacking in him he needs to make effort and acquire it:
The Wholeness a Soul Achieves When Its Work Is Done
Da'at Tevunot 21:1