Let's explore that idea, what if a god exists... A god that designed us for a single purpose...

Why would a god that needed us to fulfil a singular purpose give us the power to choose to not fulfil that purpose? Why would a god choose a purpose and then not clearly communicate that purpose? Why would a god give us the capacity for reflection and awareness, allowing us to derive our own meanings, if none of those meanings were valid?

What would a single meaning of life even look like? Let's take a guess and say that love is the meaning of life. That would mean the only point of life was love. All the other experiences? Meaningless. Says who? Who says they're meaningless?

"A meaning" is like "a sock". There is only one true sock, all other socks are false, only those that have this sock can truly know what a sock is, etc... You're trying to condense a potentially infinite group to a single example.

As for the whole "beneficial to us" thing, in what sense? The whole "life after death" thing? Something else?

In any sense. Why should we assume that our creator is sane? Perhaps they sell toy universes at the counter in grocery stores and we are in the hands of some cruel teenager in our host universe. Perhaps they run simulations to find a particular outcome of evolution. Maybe we are in some sort of digestive organ of a god which feasts on evolutionary structures which perform complex computations.

If the creator is insane, and is silent, then it seems unlikely anything you could do would reliably appease it.

Also, if you accept that any possibility is potentially the reality in which we inhabit, then it's possible that you are god. Now you could be god, what do you want to do with your life?

If we could establish a communication channel to the creator we could perhaps negotiate a transfer of all consciousnesses on Earth to the host universe. Maybe the creator isn't even aware of us and would simply shut us down if we wouldn't establish contact.

The possibility of solipsism cannot be excluded, but it also seems to be very difficult to test. I don't want to spend too much time thinking about it, because there are two approaches of broadening our knowledge which appear to have lower hanging fruit: The theory of mind and the theory of everything.

There's another possibility that the universe doesn't need a creator, it has always existed, going through a cycle between 'big bang' and 'big crunch'. That doesn't exclude the possibility of higher powers within the universe (or multiverse if that idea floats your boat).

A universe without a creator might seem scary to those who have been brought up to believe in a creator, but how would it affect your day to day life? The pleasure and the pain found within existence is just as real as it was before, you can still take time to reflect on the nature of existence as it's a fascinating but unanswerable question, the only real difference is taking advice from different sources about the path you take through life.

Furthermore, if there is a God, and this God designed us, then our natural state is what God intended us to experience. By separating ourselves from the life that surrounds us we can disconnect from these experiences. How can a God judge you for living according to the nature it designed?

I'm not saying that this is the only possibility but merely that we cannot exclude it.

I agree. That's why I'm agnostic. We're not able to determine whether God exists or not, so I accept the possibility that it does exist as well as the possibility that it doesn't. Instead of looking for answers to impossible questions, seems better to explore the possibilities of the existence we can experience.

Uneasy lies the head that wears a crown.

Don't worry be happy.