So these interactions shown in green, and those interactions are overall more stabilizing than interaction between the water and the potassium. So even though we have to input a certain amount of energy for this potassium to actually move into this restricted area and break that salvation cage, we form more stabilizing bonds. And when these bonds are formed, energy is released. And the amount of energy that is released in this process is greater than the amount of energy that is used to actually break these bonds. And so the sum of those two values will give us a negative free energy. And what that means is this process of the movement of these potassium ions across is an overall spontaneous process.