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PSYCHISM AND THE FOURTH DIMENSION
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write a message inside, But let us now form a mental image of such a box. Though it appears to our minds opaque, yet we can with the mind's eye see both the inside and the outside at once; hence and this is of the first importance our mental conceptions are fourdimensional. Hence the mind can conceive a four-dimensional perpendicular to three-dimensional space--the room, for instance-which would be perpendicular to this room, and would enter three-dimensional space at the point of physical consciousness in the head.
It is an experiment in psychics worth trying, to follow this perpendicular in the other direction.
Let us now come to a simpler experiment in transcendental physics, also from Zollner's book. As a straight line can only be drawn in one direction at once on a sheet of paper, so, it is clear a Flat-lander could only pour water in one direction in two-dimensional space-along a straight line in fact. We, however, in virtue of our three-dimensional superiority are able to spill water from above on a surface, so that it will spread in every direction on that two-dimensional surface, excitiøg the wondering admiration of any two-dimensional beings who happen to be in the neighborhood.
By analogy, a dweller in four-demensional space could pour water into our three-dimensional room, so
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