The problem with the humans is they think, they know everything and try to understand from the limited sense perspective. The human sense or what we call sensors have a limited capability. We know nothing about this universe or who designed it etc.
All things that we see around are perfectly designed as we see the structure and patterns. Scientists are trying to equate and apply mathematics to understand more. However, the so called atom, subatomic particle etc. nobody have seen or there’s no evidence of it. That’s said, humans who are bound with time and space will never, ever understand the true reality. Folks who look inside their own mind and body will to get to know more. Yes, there’s an answer for all your questions. You will get from Guru’s or Yogi’s and not from scientists for sure :)