Even now, we are all in the World of Infinity; we just don’t feel it. Everything depends on our qualities, because the Upper Light is the unchanging quality of bestowal and love.
We don’t have to work on correcting our egoism and we don’t need to fight it. What we have to work on is building the quality of bestowal and love (the screen) above it, so we will be able to receive the Light inside this quality and discover the Creator. This is why in Kabbalah, the work and the reward are the same thing.
This is different from the earthly or religious systems where the work takes place in one place and the reward is given elsewhere. Moreover, if you could get the reward without the work, you would happily abandon the work. In Kabbalah, the only reward is to become bestowing and loving like Him.
It is written: “The reward for a Mitzvah is the Mitzvah (Schar Mitzvah – Mitzvah).” This is followed by knowing the Creator or merging with Him (Schar Mitzvah Ladaat HaMetsuveh). On the other hand, in religion people think that by performing commandments mechanically, they will earn a reward in the world to come, and once they get there, they will have everything. This is what religion tells us, and this is the fundamental difference between religion and Kabbalah, which says that we have to receive our reward here and now! There is nothing waiting for us after death, besides the next life cycle where you will get another chance to reveal the Creator within yourself.