What makes the difference? From one state a man comes out the very same man that he went in, and from another state the man comes out enlightened, a sage, a prophet, a saint, his whole character changed, his life changed, illumined. These are the two effects. Now the effects being different, the causes must be different. As this illumination with which a man comes back from Samadhi is much higher than can be got from unconsciousness, or much higher than can be got by reasoning in a conscious state, it must, therefore, be superconsciousness, and Samadhi is called the superconscious state.