Basically, there is simply nothing to worry about, because you yourself are the eternal energy of the universe.

To be silent is not to lose your tongue. On the contrary, it is only through silence that one can discover something new to talk about. One who talked incessantly, without stopping to look and listen, would repeat himself ad nauseam.

We must see that consciousness is neither an isolated soul nor the mere function of a single nervous system, but of that totality of interrelated stars and galaxies which makes a nervous system possible.

... preliminary accounting, banking and surveying (known as arithmetic, algebra and geometry).

I owe my solitude to other people.

In looking out upon the world, we forget that the world is looking at itself.

Essentially Satori is a sudden experience, and it is often described as a "turning over" of the mind, just as a pair of scales will suddenly turn over when a sufficient amount of material has been poured into one pan to overbalance the weight in the other. Hence it is an experience which generally occurs after a long and concentrated effort to discover the meaning of Zen.