The third paragraph is rich in imagination: look carefully and use the grass as a forest, the insects and ants as animals, the convex parts of the gravel as hills, and the concave ones as gullies, and your mind wanders among them, enjoying yourself.
The fourth paragraph, careful observation: One day, I saw two insects fighting among the grass. Looking at it, I was very excited. Suddenly there was a huge thing, uprooting the mountain and knocking down the trees. It was covered with a toad and its tongue was Vomited and swallowed all the two insects.
I remember one of Rich Imagination imagined mosquitoes as cranes and then looked at that sentence, which seems to be true
Because the author observes things carefully, is rich in imagination and association, loves life, and is caring.
Enlightenment: We must observe things carefully, be imaginative and associative, love life, and be caring.