This subject has only been overlooked; it is not that man is not capable of understanding it. Man is capable of it more than ever before, because he has so much to suffer. This life as we live it is a most painful life. It crunches and grinds him to make him a better man. If he gave his thought to it he would profit by it and would become a better person. In ancient times people underwent different ordeals, trials, and tests. We today do not need to do this. We have other trials today, we do not need to seek for them. If we only knew how to profit by them! At this time, when every little bone and piece of skin of every animal is used for something, we yet do not make use of our own life's experience, which is more precious than anything else. If there is news of an oil-well or a gold-mine everyone is interested, but people are not interested in this gold- and silver-mine, this mine of jewels and gems, the cultivation of which will produce all that can be produced! They do not think about the most valuable thing of all. Nevertheless, the great gurus and teachers of all times have put much emphasis on this one point, that those who wish to seek after truth must above all give their thought and mind to the development of personality.