If we are a part of the same nature/pattern (Determinism) then why the intuition that life has meaning is so deeply ingrained in us? Shouldn't that be a part of the very pattern as well; therefore, we shouldn’t feel or even be aware of the notion that we have free will? Why this very pattern would then create such contradiction within itself?
Because most people don't think about it. And those who do think about it, don't do so until they are older. By that time, we have been exposed to years of environmental pressure that reinforces the idea that we have free will.
And I don't see why I should ask a Physicist when you are the one who is fully determined on the ancient concept that every event has a prior cause that causes the event itself.
When did I say that everything has a prior cause? Our actions certainly all have prior causes. However, the idea that everything has a prior cause is a pitfall in our thinking because we are pattern-seeking creatures. There is no reason not to think that the universe, even prior to the big bang, existed in some form.
The Big Bang happens to be the biggest event that has ever happened to our knowledge so I need to what caused it. You, of all people, should know.
Why should I know? I'm not a physicist. Go tweet Lawrence Krauss.