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

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My heart is smiling, in some contexts, it is associated with freedom. In others, it symbolizes love (or being in love).
In this song, it could be that the singer feels like she is joyous and unbounded by worries.