Ideas of things are always beautiful and wonderful because we can make them whatever we want them to be. Reality on the other hand is much more rigid and fixed.
It’s like the ideas are the smell of a cake and reality is the actual cake. You could smell chocolate cake and anticipate it to be the best you’ve ever had but when you cut a slice and take a bite, it’s absolutely awful.
And so, I think as much as it’s important to daydream, it’s very important to focus on the reality of things because things don’t always turn out the way you imagine they will. And just like with the cake, something that smells good or even looks good doesn’t always taste good.