After 33 years as a JW and leaving 25 years ago I think prayer can be summed up with the Jews praying at the Wailing wall.
All they are doing is talking to a brick wall ,and getting no feed back
And they expect an answer to their prayers ?!
Christians /other beliefs might find that funny but they are no better off.
Prayer is always a one way street you talk either vocally or mentally to GOD however you never get the same back .
If GOD " so loved the world that he doesnt want any to be destroyed but have everlasting life " then whats the problem with him audibly answering his servants prayers ? He supposedly spoke to humans centuries ago so whats his problem now ?