The poet believed that 'Beauty' first entered the world not at its creation, nor with the first garden, the first sunrise, the birth of the first man and woman and their first sexual act. The poet believed that 'Beauty' entered the world the day the first child blushed.
If getting our kids out into nature is a search for perfection, or is one more chore, then the belief in perfection and the chore defeats the joy. It's a good thing to learn more about nature in order to share this knowledge with children; it's even better if the adult and child learn about nature together. And it's a lot more fun.