Gravity – how to understand it?

To answer this question, I adopted couple of pivotal assumptions, without which I wouldn’t trouble myself to explain my stance in terms of cosmology.
1. The universe is a closed system (finite), limited by lack of space “beyond” it.
2. The universe is not expanding.
3. Prematerial ### Więcej…/More…


Could we say that NOTHING was since ever? Does it make any sense?
And now:
If statement that NOTHING was since ever (infinitely long) make sense, so the statement that SOMETHING was since ever is equally true.
Nevertheless, my reasoning is as follows:
There „Was-Is-Will_be” some ### Więcej…/More…