Help with my reading comprehenshion about the seven dwarfs

It goes like this:

"Seven was less than we were used to being. We had once been the number one more than seven, we clots in the earth's arteries. But one of us left and maybe for need of him we were stricken with attention."

What does it mean by "we clots in the earth's arteries" and "stricken with attention"?

I'm glad you don't understand those phrases, I don't either! They are either typos, or intentionally wrong, or the author is on drugs, or does not know English good.

That's not normal English.