From the book, Likkutei Halachot: The essence of love and oneness is in the desire where each one wants what his friend wants, and there is no difference in their desires, all are included in one desire, and through this they are included in the higher desire—unity.
I don’t know what this higher is. It has no form; it is not found. There is no higher by itself. Where is the spiritual ladder found? Was it in Jacob’s dream as the Torah tells us?
The ladder doesn’t exist without us. I create and build the higher the moment that I connect with the friends; with them I reach a complete degree of unity, and then a higher level that didn’t exist before is presented to me. So the Creator is called, “Come and See” because we build and create Him ourselves; we give Him His form.
Therefore it is written, “The essence of love and oneness is in our desire, where each one wants what his friend wants, and there is no difference in their desires so they are connected with each other, and included in one desire; through this they are included in the higher desire, and by reaching one collective desire we discover the higher—our unity.” Then we understand that we have reached the higher level.
From a Preparation Lesson for the Arava Convention, 1/30/14