When I am not prepared to give to you and you are not prepared to give to me, there is a gap between us. A connection forms when both of us are ready for this and we are able to give to one another, because there is a third participant, the Light, the Creator.
It is He who establishes a connection between us regardless of our opposite properties and gives everyone the things they lack. The Light provides for us and this is why we can connect and mutually supplement each other—with Light!
But if I am waiting for the “six hundred thousand loyal lovers” to come to me, then I will never see them. It is written that everyone is asked at the same time because the mutual guarantee comes from the connection of everyone, also with the Creator. He is the guarantor of our entire connection.
From the 4th part of the Daily Kabbalah Lesson 10/15/10, Writings of Baal HaSulam