You see this spore here? You Might think its dangerous because it emits poison. But truly look at it! The roots spread with direction. Its not random. Its intention. 

This Intention is hard for us to understand. So i collect these and bring it back to my secret lab to grow them with clean soil and water. I get into close dialogue with them. 

This is when I discovered that the plants themselves aren't corrupted. They are in fact absorbing the poison and purifying it. They're the cure. The pollution lies within the earth itself. Caused by human actions. Someone who made a terrible mess of the world.