If it was just me and Elvis one on one, which only happened once or twice in the times that I did see him, it was a really comfortable. He was a cool guy. Easy laugh, nice guy.
All human language draws its nature and value from the fact that it both comes from the Word of God and is chosen by God to manifest himself. But this relationship is secret and incomprehensible, beyond the bounds of reason and analysis.
A song must move the story ahead. A song must take the place of dialogue. If a song halts the show, pushes it back, stalls it, the audience won't buy it; they'll be unhappy.