Repetition can work, but only if it's done well. Here, it started out good, but when the entire poem is composed of questions formatted the exact same way with no sort of visible emotion, it's blah. Try experimenting; show us these "invisible hearts" and what would happen if we loved them (by the way, I think "invisible hearts" is an extremely inspirational phrase). Use imagery, detail, words that stick out in your mind.

Also, when using an if clause, punctuate!

"If it's an invisible cry, is it clear?" You omitted all the commas! I would really love to see what you could do with this...

~Cristina

interesting poem. it's got sort of a dark, haunting atmosphere to it, which i like. the repetition is good, creating a nice flow and rhythm.

It's good, but I felt like there was false emotion and it wasn't real to me. But the words were great and my favorite line was, "if it's an invisible lie can you trust it?"

interesting poem, i love the line "if they're invisivle bars are you free?"

however, some advice, i wouldn't make the whole poem a bunch of questions, although you do do this fairly well.