When Christians pray, we pray as those who have been freed from praying like the world. We pray as those who first have heard from our God in his word, who have embraced his gift of unsurpassed grace in the person of his Son, and who have no need to earn his favor with our repetition, posturing, and pretense.
Rather, we can ask simply, as children. We can ask profoundly, with new hearts trained on him, not just the things of earth. And we can ask with humble confidence knowing that our Father already knows our needs, and knows them even better than we do, and is even more committed than we are to meeting them in the deepest and most enduring ways.
Read more here: https://www.desiringgod.org/articles/pray-shorter-prayers