Water will naturally flow from the left side to the right side, down the osmotic potential gradient. Now, we can rephrase this. We can say that water moves from a low solute concentration, the left side, to a higher solid concentration, the right side. So this is known as osmosis. So osmosis is the process by which water naturally flows from a high osmotic potential or low solid concentration to a low osmotic potential or a high solid concentration. And this is described by the following diagram.