A spider is walking down the screen to my porch window. I realize this may well be the only living creature I will see today. I stop reading and reflection upon ideas to observe.

It is small (1.5 cm) and has an elongate body. One pedipalp appears slightly shorter than the other, or is held more closely to the body. It is descending a vertical plane directly in front of me in fits and starts, as we say in English. I watch closely.

I realize then, that something I never noticed before is happening … as the spider’s movement. Something quite shocking, since, in a powerful way, it underlies the very basis of bisymmetry, even in our brains and bodies.

It was this: I could now see that the spider moved by ‘passing a single wave’ back and forth across a ‘gap’ which is actually a body. The wave, being nonphysical and invisible, uses the body as a gap. As each leg moves, it completes a small portion of the wave, adding character (i.e. directional purchase against reality) and momentum, and then ‘passes the wave across the gap’ to another leg, which continues and elaborates this process.

A single wave passed back and forth across a gap (in this ordinarily unthinkable way involving invisible waves and unseen dimensions of ‘across’) creates movement. Now I begin, at last, to understand… so much more… than movement…

I am speechless in awe at what this reveals to my inner understanding… for it has to do with every form of bisymmetric and bipolar relationship… and particularly those that ordinarily involve living beings.