The mutual guarantee is when we all unite together in a way that everyone fulfills the desires of another. None of us can fulfill himself on his own—this is impossible in the spiritual world. I can only fulfill the desires of someone else, by 100%.
If I attain the world of Infinity, that means all the spiritual vessels (desires) are before me, and I fulfill them all with the Light of NaRaNHaY, which passes through me as an infinite Light that flows through me to others.
And I am left with the Light of Nefesh de Nefesh present in me at all times. The remaining Light passes through me and fulfills the external vessel that I have attached to myself. And this is what everyone does!
For me, the desires of another are “circular” (Igulim), meaning they are limitless. However, the form in which I fulfill them is a “straight line” (Kav Yashar), meaning this is the work with the screen. In this way I turn into an infinite “straight” desire if I fulfill the infinite “circular” desire of other people without any limitations on my end.
Personally I am limited in my ability to fulfill another, but I always perceive others as free of limitations. The limitation exists only in me—in how much I am capable of bestowing to them.
From the 3rd part of the Daily Kabbalah Lesson 8/18/2011, Talmud Eser Sefirot