Of course, this is a highly simplified view of nature, but nevertheless, the main idea is conveyed through the image of Totoro very clearly: if a person treats nature with love, respect and admiration, then nature will treat him similarly, opening for him a world of miracles and magic.
The image of nature in Miyazaki's films can be associated with Totoro, the kindest forest spirit. It's not for nothing that Totoro became the logo of Studio Ghibli
Miyazaki’s nature is a full-fledged character, not just a background for the main characters actions. The characters interact with nature, and to a large extent it is the way they behave that shows Miyazaki’s own attitude toward these characters.