What does the saying, "overlooking the obvious" mean?

It basically means you gotta dig deeper to find better stuff than what's right there.

Explanation:

Self Sufficient State

Also known as the 'self-sufficient state,' or, in mathematics, and, psychology, identity.This means we are, all of us, overlooking the obvious, whenever we use mathematics to quantify, and language to qualify, reality.

b energy transmission, d energy distribution, and e energy education

answer; statuesque figures that cast shadows);