Is There a Point To Living a Moral Life?

[MindForgedManacle]

And thus, meaning was born; they are on this earth to carry that one belief around with them.

That's a confusion. If they don't believe there is any purpose to life, that does not entail them believing that they are here to have that belief. That doesn't make any sense.

Bottom line is that whatever you have committed to believing/being *is* the meaning that your life has taken on. For a painter, mechanic and astronaut it's a rather trivial realisation, but for the nihilist...

If I were but a being that had a single belief that, say, tne sky was blue, that wouldn't mean my purpose is therefore to be on on Earth to hold that belief. You're using the word 'purpose' in a way that doesn't make sense to me.