Nihilists often sound depressed about life having no meaning or purpose.
Religious folks often say that, without god, life would have no purpose (i.e., God saves them from the state of depression that some nihilists find themselves in).
What could purpose look like?
Suppose a conscious intelligent designer (let’s call it ‘god’) creates a conscious being and gives it a specific purpose. God might say “I created you because I wanted to see if you can get to the end of this corn maze.” Suppose this being was even created with a very strong desire to get through the maze. This being was created with a purpose.
But is that really objective meaning?
You could ask the meta question, “what is the purpose of the purpose?” I conjecture that in any possible world you can find a meta-purpose question for which the answer is ‘there is none.’ Thus, there is no possible world in which life could have objective purpose or meaning (at every meta-level).
Why be depressed that we don’t live in a world that couldn’t exist?
It seems strange to be disappointed because something didn’t happen that couldn’t happen. It seems strange to be disappointed by something having no purpose that couldn’t have a purpose.
Humans have as much purpose as any living thing in any world could have. There are better possible worlds for sure, but I cannot imagine one with more meaning or purpose.
Complaining that life has no purpose is like complaining that salt is composed primarily of sodium chloride.