Answer: Due to the fact that you have to carry the cup full of gold coins from one place to another, each time you attain His greatness, and through that, you bring Him pleasure.
He doesn’t need to have his treasure transferred anywhere, and He does not need your work. His pleasure is in having you understand Him, feel Him, and become similar to Him, and that you grow through that. By this you bring Him joy.
And your pleasure is in fulfilling His desire: You ascend, grow, and do everything that He wants. And you do this not in order to receive a pleasant and attractive reward that you earned along this entire path, but in order to bring pleasure to the Creator.
We need to feel this point in which we replace His attitude toward us with our attitude toward Him. This is the point where we meet Him. There is one and there’s the other, and in between is the place of our meeting, where we transform one into another: He bestows to us, and we to Him. And it is here that the point of the Masach (screen) is, the point of our connection.
From the 1st part of the Daily Kabbalah Lesson 3/27/12, Shamati #52