Too often they describe the limitations of their own patterns of thought, and nothing more. For example, some people say that God never changes, because God is perfect, and perfection is changeless. But they are only describing the small circle that their dependence on words takes them in. They make the same mistake as a child who thinks that infinity is a number like a million, only bigger. Infinity is a concept, not a number, and a mathematician would be happy to tell you that there are many different kinds of infinities.
Perfection is also a concept, in the same way that infinity is.
And there are many kinds of perfections. When we apply the concept of infinity, we decide to stop counting the items because we recognize the concept of limitation in the quality of magnitude no longer applies to the situation. When we apply the concept of perfection to God, we must recognize that the absence of limitation in the quality of expression is present. We can say God is in this and God is in that, and we can say it until we have named every thing in the universe. But we are no closer to God.