The generous abundance of her passion, without guile or trickery, was like a white flame which penetrated and found response in depths of his own sensuous nature that had never yet been reached.

It's not in the book or in the writer that readers discern the truth of what they read; they see it in themselves, if the light of truth has penetrated their minds.

By Hays' reasoning, penetrating a rectum with a penis is a violation of how God meant humans to function. However, penetrating a human body with a sword, a common way to kill people in biblical times, is acceptable. Apparently human bodies were designed to be penetrated by metal implements, but not by flesh.

I penetrated the outer cell membrane with a nanosyringe.