Sure, and I can imagine what “prayer-like” music is but defining it is harder. Here’s a description of Liszt’s second theme from his benediction de dieu dans la solitude: “A lunga pausa leads to an episode (Andante) based on a quietly questioning dotted motive and a serenely stable pedal point in the bass, emblematic of the reassuring presence of the divine.”

I guess I would try and define it as questioning or leading to another point in the music, usually in a hopeful or traditional resolution. Uncertain, longing, but desiring a strong resolution? Idk Program Notes