Power of water is its amount

When you hold a glass of water, it has no power, only can fulfill your thirst. If you hold a bucket of water you can feel its weight. And you can throw it forcefully and see it can drawn dust with it. When you see the sea water, you can feel how big the world is. If you put your feet in the sea water you can feel its power a bit too. But to know its big power you have to see tsunami. This can smash towns or countries. It’s the amount. Bigger the amount will create the bigger power. But it can only be seen at tsunami. Otherwise it doesn’t show its power, or don’t know about its power.