Inspiring is an exhausted word, but after I finished watching Hearing Is Believing, the new nonfiction feature from award-winning producer/director Lorenzo DeStefano, I couldn’t think of a more apt description. It might even make you rethink the word. From its crowd-sourced inception to its well-waited arrival (it’s streaming online now), it tells a story of humble beginnings, family, music, and falling in love with your calling.

It’s also a story about happiness.

Born fifteen weeks premature, Rachel Flowers came into this world weighing one pound, five ounces, leaving family and doctors with low hopes for her survival. After three months in the hospital, Flowers survived, but her prematurity caused the loss of her eyesight. “During that time the nursing staff allowed me to bring my guitar in to play music,” her father recollects in the film, as he holds his guitar. “I wrote this piece for her. She was my serendipity.”

That love of music and of family is a clear theme in Hearing is Believing. Most 4-year-olds begin music lessons clumsily pecking at the keyboard (I know, I was one of them), but Flowers started out by playing entire movements of Bach and Beethoven—by hearing them only a few times. But this is a story about much more than child genius. As the film evolves, you not only see Flowers’ talent in action, but you also see her heart; her joy and distinctive laugh are absolutely contagious.

Hardships, by their definition, are unfair. When unwarranted misfortunes come our way, it’s easy to find ourselves wallowing in self-pity or anger. Yet adversity often allows us to rise to the occasion; it draws up our strengths in a way that a life of ease never would. At one point, Flowers’ instruments were stolen in a home robbery. Poof, gone—thousands of dollars of instruments. After her initial shock and tears, Flowers spent…