This is Day 79 of the Positive 100, a countdown to Rare Disease Day 2014 and an exercise in being positive despite it all.

Do you know the song in your heart? Because we all have one.

Poets talk about hearts being filled with song. It’s a lovely, romantic sentiment to think that who we are is a song. A compelling melody that plays back our joys and triumphs. A tune that drips with melancholy and minor chords when we are sad.

My song has been playing in a minor key lately, even if I am working on staying positive. (Sometimes I forget just how hard it is to find the silver lining.) At least it is still playing.

This project is all about changing the key.

Making a conscious effort to see the positive when I can has helped me stay willing to fight for my body. And the song of my life isn’t written in a minor key throughout, this just happens to be a movement with a key change and I’m sure it will change again soon.

I’ll leave you with a hauntingly beautiful song from Doctor Who, which might just be the song playing in mine these days.

“Rest now my warrior,
Rest now hardship is over,

Live, wake up, wake up,
And let the cloak of life,
Cling to your bones,
Clinging to your bones,
Wake up, wake up.”

What is your song? Share your answer on social media with the hashtag #100positivedays on Twitter, Instagram and Google+.