A broken heart is what makes life so wonderful five years later, when you see the guy in an elevator and he is fat and smoking a cigar and saying "long-time-no-see." if he hadn't broken your heart, you couldn't have that glorious feeling of relief!
To bring one's self to a frame of mind and to the proper energy to accomplish things that require plain hard work continuously is the one big battle that everyone has. When this battle is won for all time, then everything is easy.