Torah 254 · תורה רנ״ד

Eyes are very lofty and exalted entities. They are constantly seeing things that are great and awesome. If a person were worthy of having kosher eyes, he would know very great things simply from what his eyes see, because they are constantly seeing. However, he does not know what he sees.

For example, when something is flashed very quickly across a person’s field of vision, he does not know what he saw, although, as it was passing in front of his eyes, he certainly did fully see it. Even so, he does not know what he saw, for although his eyes saw the object in its entirety, nevertheless, because of the speed there was no time to bring the sight to the mind for him to know what he saw. For knowing what one saw depends upon the mind, and this requires a certain amount of time, with the object remaining in his view for a brief period. This allows the power of sight to bring and transfer the object being viewed to the mind, in order that the mind may know what he saw. However, due to the speed, he saw the object only with the sense of sight, but there was no time to transfer the object to the mind. He therefore does not know what he saw.

Similarly, with his eyes a person constantly sees great things {i.e., visions and revelations}. However, it is akin to something being flashed in front of him very quickly. He therefore does not know what he saw, as explained above. Understand this.