The motion of dust in sunlight is fairly arbitrary. Just as an important difficult decision a man makes after careful consideration and reflection is deliberate...but wait...along comes naturalism...and sorry I guess we must conclude they are both just arbitrary and random...as is everything else such as reason and morality.
Sorry, naturalism asks me to conclude too many idiotic things, so I can't accept it.
I don’t see the limitations on how the Universe came to be as having anything to do with my understanding of naturalism.
The way I see it, Naturalism would say, “What is, is.” It wouldn’t concern itself with how it came to be.
Either the Universe popped into existence all at one time, as described in the Big Bang model, or it has been there all along, with matter popping into existence from nothingness at random intervals in empty space as in the discredited Steady State model.
Or maybe it is cyclic, expanding and contracting. Aside from being something to talk about and think about, what practical relevance does it have to how one chooses to live his life? One can be evil for any reason, or good for none at all.
Some of us ask these questions because we seek understanding. Others seek guidance. They’re probably on equal footing with getting a satisfactory answer.