psychic energy
mental energy

I used up no psychic energy on him at all.

Did it need the psychic energy of those who came to rest their hands on the mound?

Human psychic energy is really a rather poor substitute for what you eat in your own world, isn't it?

This was one hell of a good use for psychic energy.

"She is not going to have the psychic energy for it because of her own pain."

I've never come in contact with any psychic energy of that nature.

In his condition today, he may need time to generate the psychic energy needed for a change.

Such things build up vast psychic energy over the years.

What was humming between them had nothing to do with psychic energy.

When in long use they built up psychic energy within them.