Divers search in the ocean for pearls; they don’t find them every time. They may have to dive twenty or thirty times in the deep sea to get them – and even then they don’t always suceed. Sometimes they may not find certain pearls for years, although the pearls are there. The diver is doing his duty, but he is not getting a reward. Each of us must likewise make repeated efforts in our own life. Always make an effort. But there should be sincerity in it.