Answer: If you penetrate the friend you begin to feel his ten Sefirot. They are felt as different tastes, as if you are in a good restaurant and received the main course, and next to it many other dishes: different salads and desserts. You begin to feel many flavors in the friends, different attributes.
When your connection continues to develop, nothing disappears from you. In the corporeal world we usually forget the weak flavors when we receive some great pleasure. It’s very common with small children who immediately throw away an old toy when they see a new one. But it’s different in spirituality where the Light of NRNHY operates and which includes many levels.
It says: “Love will cover all sins.” This means that we have to feel the sins, the conflicts and the love simultaneously, and there cannot be one without the other. This is the structure of the ten Sefirot of the Direct Light and of the Returning Light that are dressed into each other that we have to feel in all their opposite forms and attributes. One doesn’t extinguish the other. This is the wonder of the spiritual world where there cannot be “a little bit” of anything but rather the maximum. There is no past, no present, and no future; everything connects simultaneously into one feeling.
In the corporeal world we want to forget the family quarrels and to start a new leaf as if nothing happened, but this isn’t correction. The correction is actually when all the disagreements remain and nothing is forgotten and on top of it we establish an even greater state. This is actually the reason that everything flourishes. We have no such opportunity in the corporeal world but only in the spiritual world. When two opposites exist together in order to bestow, they amplify one another.
From the 3rd part of the Daily Kabbalah Lesson 1/27/14, Writings of Baal HaSulam, The Study of the Ten Sefirot