“I was within and without. Simultaneously enchanted and repelled by the inexhaustible variety of life.” 

(The Great Gatsby, F. S. Fitzgerald)

We want so hard to live our life to the fullest, but yet when looking at the future we have the innocent stare of a child, not knowing what to expect. It comes a time when our dreams start to concern reality and we have to actually do something to make them true. That's the time of getting off our castle on a cloud, even if reality won't ever be pure as our imagination is.