"universality of things"

Hello to all,
I am trying to "crack" a phrase from a legal informational text:
"A foundation is an organisation consisting of a universality of things constituted by a founder whereby assets are destined either for the blah blah blah"

What is "universality of things"? Google says this is a phrase from a William Carlos Williams' poem. What does it mean in this context?

And also, what does "constituted by a founder" refers to in this text? Is it the organisation or "a universality of things" that is "constituted by a founder"?

Thanks!