Separation
Separation is a fact of life, and the only difference is that we feel separation from different people at different times. But all the time there is the separation from someone or the other. The increasing feeling of separation, perhaps anguish, reveals growth of love. This is a wonderful thing, though it causes great pain at the same time.
Taken from the book "The Spider's Web, Vol. 1", Chapter "Association - Discipleship - Self-Mastery", pg. 261, by Revered Chariji