is prakriti.

"It is the line of no weight, where gravity and apergy exactly
balance. Inside that line gravity exceeds apergy and everything
revolving in less time, or that time, must fall to the centre.
It is the true surface of any 24-hour globe of this size and
weight. A moon to revolve around the earth in less than one day
must move faster than the earth to develop enough apergy to
overcome the attraction. That phenomenon we see in the moons of
Mars, which are within its atmosphere; within the planet itself.

"We of the East learned this true size of the earth over six
thousand years ago, from observing the moons of Jupiter. The
times of the first three are doubled. We asked ourselves what
this meant and found that their distance was increased by the
cube root of 4 when their times were increased by the square root
of 4; that time was to distance as 1.6 was to 2. Then we
applied the key, and found it unlocked many mysteries.

"The first lesson this taught us was that we did not live on the
earth, but within the earth, at the line of liquid and gaseous
changes, where the three forms of matter meet and mingle and
interchange with each other. We lived at the bottom of a gaseous
ocean 21,000 miles above us, and 4,000 miles from the centre of
the globe. It gave us an entirely new conception of the earth,
and of our place in it.

"We saw that we lived in a narrow belt, or skin, of the earth,
not more than 100 miles thick, perhaps not more than ten miles.
Within this belt the prakritic elementary substances varied their
condition, combined, and made forms by increasing or decreasing
vibration. It was the creative and destructive zone, the
evolutionary "mother"--the liquid level of the prakriti--the
seat of all physical phenomena. Fifty miles above, the masses of
nitrogen and oxygen and argon were too cold to change their rate
of vibration. Fifty miles below the surface of the earth all
things were too hot for changes in vibration. In this kinetic
belt, between two static masses our bodies had been made, and
also, in all probability, all combinations of the elementary
substances. It was four thousand miles to the centre of the
static prakritic mass beneath us; twenty-one thousand miles to
the surface of the static prakritic mass above us, and the small
kinetic belt between was only one hundred miles thick. But we
had one consolation, the prakriti we had was all kinetic, and the
best in the whole mas