I've heard the saying numerous times in music, can't remember the artists. It has applied to my life for the last 6 years, since a work accident ended life for me as I knew it. It has been down hill ever since, and I haven't even hit rock bottom yet, so..
That's why I've made a few pieces with a more sinister feel to it
But it's all in how you deal with it, and how you approach the obstacles along the way. Keep a positive mind and heart, then you'll succeed in most things in life. Sometimes you'll find that it'll get you down, but with that positive mind you'll be able to reach inside your heart and pull yourself back up again
This probably was more information than you bargained for, but never the less, it needed to be said