I believe I can fly;

"Sometimes you wake up. Sometimes the fall kills you. And sometimes, when you fall, you fly." 

 - Neil Gaiman(Fables and Reflections).

I rationalised the line "And sometimes, when you fall, you fly" means that - there are times you will experience hardships and failures but sometimes, you will find the strength to go on, overcome those hardships and eventually, you will be able to stand tall again and achieve your aspirations.