This, in short, is the idea of Samadhi. What is its application? The application is here. The field of reason, or of the conscious workings of the mind, is narrow and limited. There is a little circle within which human reason must move. It cannot go beyond. Every attempt to go beyond is impossible, yet it is beyond this circle of reason that there lies all that humanity holds most dear. All these questions, whether there is an immortal soul, whether there is a God, whether there is any supreme intelligence guiding this universe or not, are beyond the field of reason. Reason can never answer these questions. What does reason say? It says, "I am agnostic; I do not know either yea or nay." Yet these questions are so important to us. Without a proper answer to them, human life will be purposeless. All our ethical theories, all our moral attitudes, all that is good and great in human nature, have been moulded upon answers that have come from beyond the circle. It is very important, therefore, that we should have answers to these questions. If life is only a short play, if the universe is only a "fortuitous combination of atoms," then why should I do good to another? Why should there be mercy, justice, or fellow-feeling? The best thing for this world would be to make hay while the sun shines, each man for himself.