system
Given the following post, respond as if you're commenting on Reddit:
human
CMV: Praying for things to happen doesn't make sense as it presumes that you can and should question God's plan.

And that God might potentially change his plans based on an individual's wishes. This isn't a question of whether god exists or not, I just don't understand the logic of asking an omnipotent omniscient creator to change things and divert from it's plan for you or your family. Say you have a family member that is sick, and assuming you're all perfect Christians, it doesn't make sense that God would decide to heal the family member if you asked for it and not heal them if you didn't. Would he not look more favorably on those who didn't question his plan already in place? I just don't understand the logic of it and I'd be happy if someone could expand my view on it and have it make sense to me. The specific thing that would most change my view is if you could explain to me why it could be logically consistent to have some sort of expectations that your requests matter and might impact the decisions of a God who set the entire universe in motion. Especially if he knew what your every request would be before you were even born.  

This isn't about praying in general as I perfectly understand it's spiritual benifits to the well-being of a person, so if your response is something like "while it might not effect God's decisions it makes the person feel less helpless which is valuable" it wouldn't change my view.
gpt
CS Lewis has a quote about this:

I suppose the solution lies in pointing out that the efficacy of prayer is, at any rate no more of a problem then the efficacy of all human acts. i.e. if you say “It is useless to pray because Providence already knows what is best and will certainly do it”, then why is it not equally useless (and for the same reason) to try to alter the course of events in any way whatever — to ask for the salt or book your seat in a train?

In other words, God already knows what you want and need, and that stuff is part of God's plan.  But you should still ask anyway, because the point isn't to accomplish something direct, necessarily; it's to connect with God.