As the fourth dimension appears to be the one through which the actual life forces play and by means of which they reach concrete forms, we must consider it the most causative or influential of all of them.

It represents the nearest approach we have made to the life imbuing all things. But this last and inner dimension has no boundaries; it stretches formlessly in all directions; it is everywhere. It's very hard to even imagine such a thing even if you're well experienced in a form of Buddhist meditation, such as Zen meditation, or any other types of meditation.

This gives us an incoherent, inchoate condition to picture as the basis lying behind physical structure. It does not give us much clue as to how things take shape. We must next consider, therefore, the question of that principle in life which gives things form.

We began with a line, continued with the cross, and on reaching the third dimension we had accounted for squares, cubes, triangles, circles and globes. With the fourth dimension we had radiation, which enables these different lines of force and angles to meet and intersect, producing these forms.

If we can try to picture the atmosphere around us as it would look if we were able to see all the forces, currents and movements as they continue in perpetual action, crossing, circling, spiraling and radiating in every possible combination and in every conceivable size.

Certain variations of meditation, such as guided meditation, and depending on if you know how to meditate, can actually give you a better insight on this topic rather than just sitting around trying to visualize this dimension.

If we could imagine each of these currents as leaving its own visible little track in the air; and if we could in imagination watch this process long enough, we should soon have seen outlined every one of the beautiful forms in mineral and in plant life. We should have seen crystal, leaf, snowflake and petal sketched in.

Properly to visualize this picture, however, we must first realize how many trillions of stars, constellations and solar systems are throwing out powerful rays in all directions, which are re-radiated again from every stellar body they strike.

The rays are each one of different mineral composition, and each intersection of any two or more of them must produce chemical reaction of a differing quality. Besides this, every rotating star cuts through these rays in circles, or rather, because of its forward movement, in spirals.

If we furthermore remember that the subtle constituents of all these radiations are actually the same as those of which the earth is made, we can begin to feel that the life which is playing through all space is really a tangible, clear-cut and definite manifestation, which would appear much more crowded and intricate to our sight than our everyday physical world.

These constituents are infinitesimal particles of all the mineral kingdom, which have been radiated out or have escaped from the periphery of the atoms which make up the physical world.

They include ions, electrons, alpha and beta particles; little bodies which are propelled at colossal speed through the air, partly because of their light weight, and partly because of the stupendous force which palpitates within every atom.

Take a few million of these dancing particles, condense them together in right relationships, and you have a microscopic speck of physical matter. Yet all these mad little particles are dancing along the radiations to produce predestined interaction between star and star, moon and plant, sun and man.

They are dancing the dance of growth and evolution, dancing into the patterns which make up sound, form, and movement. It is possible to use breathing exercises along with mindfulness meditation or spiritual meditation in order to gain a better grasp on what this vision may look like.