Tao like gravity

A nice analogy is that Tao is like gravity in that you can see the effects but not the thing itself.

The problem with the analogy is that Tao is not a thing that acts, it is all. One would need to redefine gravity away from the common model to draw a clearer comparison.

If you took gravity as, not a force that acted on objects, but instead as the natural way that objects were drawn to be near one another, then you draw closer. Still no good though.

We can't talk of Tao or draw analogies as it is beyond that. It must be remembered that analogies and descriptions are of Yin, Yang or Te, not Tao, which is beyond description.