My grandfather was famous in his area for planting trees. He knew exactly what the most beneficial type of tree to plant was for your property. No neighbour was safe and none could refuse. He would show up and point out a particularly unhealthy patch of land and advise his unsuspecting neighbour of how this or that type of tree would fix it right up, and oh, look at that... he just so happens to have one in the back of his truck that needs planting. All of the yards in his area were gorgeously shaded, and he was beloved by his neighbors.
He is no longer with us, and gardening and planting trees allows me to feel connected to him. We often tear down and destroy nature, and it feels like a step towards positive change to make something grow.