O que significa "My heart is on wings?

Na música Backyard Boys (https://youtu.be/Mbj26vHDMII), o que significa "My heart is on wings"?

Contexto:
Dance with me in my backyard boy
Looking super fine in your corduroy
Drive me round the block we can go in a loop
And we’ll turn the volume up on some good boy band tunes

Love to feel the fresh air I can feel your eyes stare
And I’m not gonna lie I get a little bit scared
My heart is on wings I’m living in dreams
And at the top of our lungs we sing