Saunaka asks in this Upanishad a natural question, propounded by nearly every thinking man, especially by students of occultism who are continually seeking a royal road to the accomplishment of their objects. He wishes to be told what may be the great solvent of all knowledge. The reply of Angiras points out two great roads, which include all the others. The lower road is the one of hard work for countless births, during which we acquire knowledge slowly in all directions, and, of course, when that is possessed, one rises to the higher road. This is the true initiation, nature, so to speak, acting as the initiator. In replying to Saunaka, Angiras did not mean to be understood, that a man could in one birth pass over the lower road, but that the progress of a human monad toward perfection proceeded in a certain fixed manner which included all experiences. Of course if we say that we appear on the earth once only, and then disappear from it, to the place called by the spiritualists of America, “the summer land,” and by the christian, “heaven,” there is no need for one to acquire the lower knowledge, for that might be obtained in the life after death. But we regard it as true that the spirit, in order to acquire complete knowledge, must inhabit a human form, and one term of tenancy in such a form will not be enough for the testing of the countless varieties of life, of temptation, of triumph, failure and success. The sage Angiras in this Upanishad looks at man from the standpoint of one who can see the great stream of life which flows through the eternal plain, and therefore he could not have meant to apply his words to one incarnation, but to the whole series through which man has to pass until he reaches “immortal, blest nirvana.” In the journey along this road we will encounter great differences in the powers of our fellow travellers. Some go haltingly and others quickly; some with eyes bent on the ground, a few with gaze fixed on the great goal. Those who halt or look down will not reach the end, because they refuse to take the assistance to be found in the constant aspiration to the light. But we are not to blame them: they have not yet been often enough initiated to understand their error. Nature is kind and will wait for them much longer than their human fellows would if they were permitted to be their judges. This ought to give us a lesson in charity, in universal brotherhood. Very often we meet those who show an utter inability to appreciate some spiritual ideas which we quite understand. It is because they have not, so far, been able to transmute into a part of themselves, that which we have been so fortunate as to become possessed of, and so they seem devoted to things that to us appear to be of small value.