Our past is nothing but stagnant water. As you grow old, the amount of water gets added to it. More water, then more and more. Still water has a tendency to decay gradually. After some time it smells bad, it stinks. But in the perspective of our past, this analogy may not hold 100% correct as we cherish some of them, if not all. I have seen people and also read some of them when they open up on Word Press that their constant source of misery is their past. Past is a vicious trap (ironically, created by themselves) which they find difficult to come out. Initially they cling on it, later clinging on past becomes their habit and we all know to change habit is mountainous task. As I mentioned earlier, stagnant water stinks after few days. But there is a specialty of still water. We can see our reflection very clear in stationary water, which we will not find in water with motion. Reflection of past is good for progress, clinging on it may not so.