From Notes from Lectures and Discourses of Volume 5 of The Complete Works of Swami Vivekananda
The Vedanta philosophy is the foundation of Buddhism and everything else in India; but what we call the Advaita philosophy of the modern school has a great many conclusions of the Buddhists. Of course, the Hindus will not admit that—that is the orthodox Hindus, because to them the Buddhists are heretics. But there is a conscious attempt to stretch out the whole doctrine to include the heretics also.
The Vedanta has no quarrel with Buddhism. The idea of the Vedanta is to harmonise all. With the Northern Buddhists we have no quarrel at all. But the Burmese and Siamese and all the Southern Buddhists say that there is a phenomenal world, and ask what right we have to create a noumenal world behind this. The answer of the Vedanta is that this is a false statement. The Vedanta never contended that there was a noumenal and a phenomenal world. There is one. Seen through the senses it is phenomenal, but it is really the noumenal all the time. The man who sees the rope does not see the snake. It is either the rope or the snake, but never the two. So the Buddhistic statement of our position, that we believe there are two worlds, is entirely false. They have the right to say it is the phenomenal if they like, but no right to contend that other men have not the right to say it is the noumenal.
Buddhism does not want to have anything except phenomena. In phenomena alone is desire. It is desire that is creating all this. Modern Vedantists do not hold this at all. We say there is something which has become the will. Will is a manufactured something, a compound, not a “simple”. There cannot be any will without an external object. We see that the very position that will created this universe is impossible. How could it? Have you ever known will without external stimulus? Desire cannot arise without stimulus, or in modern philosophic language, of nerve stimulus. Will is a sort of reaction of the brain, what the Sânkhya philosophers call Buddhi. This reaction must be preceded by action, and action presupposes an external universe. When there is no external universe, naturally there will be no will; and yet, according to your theory, it is will that created the universe. Who creates the will? Will is coexistent with the universe. Will is one phenomenon caused by the same impulse which created the universe. But philosophy must not stop there. Will is entirely personal; therefore we cannot go with Schopenhauer at all. Will is a compound—a mixture of the internal and the external. Suppose a man were born without any senses, he would have no will at all. Will requires something from outside, and the brain will get some energy from inside; therefore will is a compound, as much a compound as the wall or anything else. We do not agree with the will-theory of these German philosophers at all. Will itself is phenomenal and cannot be the Absolute. It is one of the many projections. There is something which is not will, but is manifesting itself as will. That I can understand. But that will is manifesting itself as everything else, I do not understand, seeing that we cannot have any conception of will, as separate from the universe. When that something which is freedom becomes will, it is caused by time, space, and causation. Take Kant’s analysis. Will is within time, space, and causation. Then how can it be the Absolute? One cannot will without willing in time.
If we can stop all thought, then we know that we are beyond thought. We come to this by negation. When every phenomenon has been negatived, whatever remains, that is It. That cannot be expressed, cannot be manifested, because the manifestation will be, again, will.