13.2 In this shloka, Chanakya, advising persons who reminisce the past and repeatedly feel sorrow or disappointment, says that the past never returns, the events which have happened cannot be changed. So, remembering them repeatedly does not help. Similarly, a man is totally ignorant of what is going to happen in the future. So, worrying about it is also a waste. A man should only focus on the present. If he improves his present, then his future will also be bright.