The need for mutual guarantee stems from the fact that we all belong to the integral Kli, to the globe. Every desire in it, even the smallest and insignificant, can become the highest and most important if you turn the ball so that this point is at the top.
It turns out that no matter how you turn the ball, one of its points will be higher than all of them. If you turn the ball a different way, then another point will be at the top. Therefore, the mutual guarantee is an immutable law, obligatory for correcting the breaking of the common soul. Then we merge into one soul.
There is no other way to make of yourself that soul which the Creator created and broke. After all, every point in this soul must be the highest and vouch for everyone.
There is nothing more important than mutual guarantee because it brings us to the likeness of the Creator.
From the Daily Kabbalah Lesson 3/4/21, “The Mutual Guarantee”