This t-shirt design emphasizes the concept of Karma, the idea that our actions and intentions have consequences that ultimately determine our fate. The first design "Good Vibes Return: Karma" suggests that positive actions and intentions will come back to us in positive ways. The second design "Plant Good Seeds, Reap Good Karma" emphasizes the importance of being mindful of our actions and intentions, and that by doing good, we can create a better future for ourselves and those around us. Both designs promote the idea that by being kind, compassionate, and thoughtful, we can create a positive ripple effect in the world.