Flowers don't need to learn about what's good for them. Nothing in nature does. They know it organically, and it's not something they try to un-learn, like us humans. Sunflowers spend their entire day following the sun. They know internally how to stay connected to its light in the way that serves them best, and they know internally how to adjust the direction of their gaze to follow it.
We humans know how to do this too. It's called intuition. We have incredible wisdom available to us through our intuition, but unfortunately most of us spend most of our time closing our minds off to it. Intuition can best be described as knowing something without sufficient information - our left brain cannot explain the conclusion our right brain has come to. If it could, it would be logic and not intuition. The thing is, we need both.
Often, we don't have sufficient information to make a decision when it needs to be made, and so learning to trust our intuition becomes extremely valuable for us as we go through life. And often, too, our intuition tells us to do something completely contradictory to what logic is telling us. It is especially because of times like these that it's so important for us to learn the language of our intuition - so that we know absolutely that we're doing what's best for us in the face of all arguments to the contrary.
Our intuition helps us find the sun. When we cut ourselves off from it, we spend our lives searching for something without knowing what it is, when all along the answer - and the direction - is within us. The more we listen to our inner wisdom, the more we put ourselves in the perfect position to soak up the sun's rays, and the happier and simpler life becomes for us. Just like sunflowers. Happy, simple, free.