Reply To: I realized my mistake, did you realize yours?

When it comes to tefila, an expressiion of the heart, we say, רחמנא לבא בעי the heart is the most important. There is a story where a peasant came to shul, who did not know how to daven, decided to whistle. It was said that he opened up the heavens with this whistle because it came from the heart.