'Understanding is acquired, as I have already said, from the totality of information intentionally learned and from personal experiencings; whereas knowledge is only the automatic remembrance of words in a certain sequence.
'Not only is it impossible, even with all one's desire, to give to another one's own inner understanding, formed in the course of life from the said factors, but also, as I recently established with certain other brothers of our monastery, there exists a law that the quality of what is perceived by anyone when another person tells him something, either for his knowledge or his understanding, depends on the quality of the data formed in the person speaking.
'To help you understand what I have just said, I will cite as an example the fact which aroused in us the desire to make investigations and led us to the discovery of this law.
'I must tell you that in our brotherhood there are two very old brethren; one is called Brother Ahl and the other Brother Sez. These brethren have voluntarily undertaken the obligation of periodically visiting all the monasteries of our order and explaining various aspects of the essence of divinity.
'Our brotherhood has four monasteries, one of them ours, the second in the valley of the Pamir, the third in Tibet, and the fourth in India. And so these brethren, Ahl and Sez, constantly travel from one monastery to another and preach there.
'They come to us once or twice a year. Their arrival at our monastery is considered among us a very great event. On the days when either of them is here, the soul of every one of us experiences pure heavenly pleasure and tenderness.
'The sermons of these two brethren, who are to an almost equal degree holy men and who speak the same truths, have nevertheless a different effect on all our brethren and on me in particular.
'When Brother Sez speaks, it is indeed like the song of the birds in Paradise; from what he says one is quite, so to say, turned inside out; one becomes as though entranced. His speech "purls" like a stream and one no longer wishes anything else in life but to listen to the voice of Brother Sez.
'But Brother Ahl's speech has almost the opposite effect. He speaks badly and indistinctly, evidently because of his age. No one knows how old he is. Brother Sez is also very old—it is said three hundred years old—but he is still a hale old man, whereas in Brother Ahl the weakness of old age is clearly evident.
'The stronger the impression made at the moment by the words of Brother Sez, the more this impression evaporates, until there ultimately remains in the hearer nothing at all.
'But in the case of Brother Ahl, although at first what he says makes almost no impression, later, the gist of it takes on a definite form, more and more each day, and is instilled as a whole into the heart and remains there for ever.
'When we became aware of this and began trying to discover why it was so, we came to the unanimous conclusion that the sermons of Brother Sez proceeded only from his mind, and therefore acted on our minds, whereas those of Brother Ahl proceeded from his being and acted on our being.
'Yes, Professor, knowledge and understanding are quite different. Only understanding can lead to being, whereas knowledge is but a passing presence in it. New knowledge displaces the old and the result is, as it were, a pouring from the empty into the void.
'One must strive to understand; this alone can lead to our Lord God.
'And in order to be able to understand the phenomena of nature, according and not according to law, proceeding around us, one must first of all consciously perceive and assimilate a mass of information concerning objective truth and the real events which took place on earth in the past; and secondly, one must bear in oneself all the results of all kinds of voluntary and involuntary experiencings.