One of the most interesting things about the conceptualization of two-dimensional
beings is that a three-dimensional being can see the inside, or be inside
of, the two-dimensional being. Let me explain. (See
Flatland cartoon. also see article Flatland)
Take a piece of paper and draw a figure on it like a square or triangle.
Then, inside the figure, draw some wiggly lines that look like intestines.
Pick a good spot for a mouth and from that spot draw a short intestine
and then a stomach and so on until our two-dimensional figure has intestines.
Recognize that our two-dimensional figure, that you have drawn, cannot
see his intestines or his insides as we can being three-dimensional beings
looking from up above.
Now let the words of Jesus, and other great sages, come to your awareness
as you look at the figure. Jesus said, "The kingdom of God cometh
not with observation: Neither shall they say, Lo here! or, lo there! For,
behold, the kingdom of God is within you."
In other words, we cannot understand how the "kingdom of God"
could be within us; but, is not the kingdom of space/time or our three-dimensional
reality within our two-dimensional figure?
Does this not make the sages impossible sounding words, seem a little
bit more understandable.