I've had the privilege of interacting with my sister-in-law recently about a talk she's going to give soon on the topic of prayer. She asked my wife & I if we'd take a look, and I realized two things. First, she'd done a pretty good job of looking into the matter. Second, I think that her sources--among the best and most prestigious in evangelicalism--seem to actually obscure what prayer is about by going into a lot of nitty gritty details and examples--more or less making a talk with one's father into a doctoral dissertation.
And of course, nobody, including some committee members, actually bothers to read such documents. To use that genre completely obscures what prayer is all about.
So here's my challenge to the "multitude" of my readers; meditate upon the first line of the Lord's Prayer; "Our Father, which art in Heaven." Contemplate what a privilege it is to have the Creator of the Universe in your family, and have a word with Him today.