So, water tends to move from a high osmotic potential, the left side, which is also the low solub concentration, and it moves to the low osmotic potential or the high solub concentration, the right side. So it always naturally moves from this side to this side. And this is known as osmosis. Osmosis is the process by which water naturally moves down its osmotic potential gradient. Now, the next question is what exactly is osmotic pressure? Because osmotic pressure has to do with the process of osmosis.