One of the Jewish Masters of the 18th century expressed this kind of idea in a very interesting way. He was trying to put together (in couples) three different levels of the living "soul" with the three tenses of time, past, present, and future. The soul was understood not so much as a physical force but as what made the organism alive, with different levels, of which he was describing three. One had to do with the unconscious life of the body, another with the feelings or sensations, and the third with the intellect. So the Jewish master tried to pair off these three levels or aspects with the three tenses of time, based on the idea that time and living souls are a kind of couple that makes the world alive. And the question was, which tense went with which aspect? Now the almost self-evident association that would be made by most people would be that the future would be associated with intellect, but this is precisely what he did not want. On the contrary, he stated that the future is associated with the unconscious part of the body, an unconscious part that makes the body alive, whereas the intellect has to do only with the past, and the feelings with the present. The argument for this was simply that the future is unknown and therefore cannot be associated with the intellect, which has to do with knowledge; what is known must concern only the past, and what is unknown has to be associated with the unconscious.