There's a fundamental problem with the idea of praying for things and the concept of the Omnipotent God portrayed by mainstream religions.
Let me ask those who believe in this particular God, do you truly believe that:
1. Nothing happens on Earth except that God directly causes it or allows it to happen?
2. God's will is absolute and can not be changed or obstructed?
Think this through most carefully. Do you often say The Lord's Prayer?
"Our Father, who art in Heaven, hallowed by thy name
Thy Kingdom come, Thy WILL BE DONE
On Earth, as it is in Heaven"
We have to face up to what this means. Is God in charge of everything or isn't he?
If you believe he is, then YOU MUST ACCEPT everything that happens because IT WAS GOD'S WILL that it happened. He either directly caused it to happen or he simply allowed it to happen. Either way it's his will that it happened.
As we stand today, this "God" has allowed millions to die from Covid and/or the various medical interventions. This "God" is also allowing all the current deaths and suffering in the various wars (Israel, Palestine, Ukraine etc).
Either you believe God is in control or you don't.
If you do, then praying and asking for things like Aunt Sally to be healed of Cancer, is surely going against God's will is it not?
God either directly caused the cancer or allowed it to happen. Either way God wanted Aunt Sally to have Cancer. It's his will.
It would be pretty sick of "God" to give people Cancer just to see if people would subsequently pray to him for their healing. I mean that would really be a sick thing to do and certainly not the behaviour of a benevolent being. That's not the nature of God that religion teaches or presents.
So something is very off with the idea of praying.
What it boils down to is this.
If you believe the defacto concept of God peddled by the Churches (i.e Omnipotent, Omnipresent, Omniscient etc) then YOU HAVE to accept the WILL OF GOD and thus everything happening around you.
Thus the ONLY prayer one can realistically make is along these lines:
"Dear God, help me to understand your will on Earth and accept it for what it is and help me understand my part in it"
No point praying for Aunt Sally to be healed. She's only ill in the first place by Gods permission and/or action. Praying for healing would in fact be acting against God's will. You'd be praying for God to do something different to what he willed and the Bible tells us that God's will is absolute and unobstructable.
I know this will challenge many but in the end, to wonder is to begin to understand . . . . . . Jose Ortega