About the year 1250 was the time when men were compelled to fix a boundary between what they were able to apprehend for themselves, and what they had to believe from the impression made upon them by the traditions which had been handed down. What they could find out for themselves then became limited to the physical world of sense. Afterwards, however, came the time when there was more and more possibility of again winning a view of the spiritual world. But the new clairvoyance was of a different kind from the old, which virtually became extinct just about the year 1250. In the new form of clairvoyance, western esotericism was obliged strictly to uphold the principle that initiation must be the guide of spiritual sight and hearing. This was the special task assigned to an esoteric current which then entered the stream of European civilization. As the year 1250 drew near there arose a new kind of guidance into the supersensible worlds. This guidance was prepared by the spirits then standing behind outer historical events, who centuries before had provided for the kind of esoteric training which would be rendered necessary by the conditions prevailing in 1250. If the term “modern esotericism” be not misused, it may be applied to the spiritual work of those very highly evolved personalities. External history knows nothing of them, but what they did is apparent in every form of civilization which has developed since the thirteenth century. The importance of the year 1250 for the spiritual evolution of humanity is specially apparent if we look at the result of clairvoyant research given in the following fact: Even those individualities who had attained high stages of spiritual development, in previous incarnations, and who were reincarnated about 1250, were compelled for a while to undergo a complete clouding over of their direct view of the spiritual world. Quite enlightened individuals were as though cut off from the spiritual world, and their only knowledge of it was through their remembrance of earlier incarnations. Thus we see how necessary it was that from that time onwards a new element should be brought into the spiritual guidance of humanity. This element was true modern esotericism. By its means it is for the first time possible rightly to understand how that which we call the “Christ-impulse” may intervene to guide the whole of mankind and the individual also, in all possible eventualities.