In the new groups are collected together people who are very diverse in their nature, who are found upon differing rays, who are of different nationalities, and who are each of them the product of widely varying environments and heredity. Besides these obvious factors which immediately attract attention, there is also to be found an equal diversity in the life experience of the souls concerned. The complexity of the problem is also tremendously increased when one remembers the long road which each has travelled and the many factors (emerging out of a dim and distant past) which have contributed to make each person what he now is. When, therefore, one dwells on the barriers and difficulties supervening upon such diverse conditions, the question arises at once: What provides the common meeting ground, and what makes it possible to have an interplay between the minds involved? The answer to this question is of paramount importance and necessitates a clear understanding.