If we observe our way, and dogs and cats observe their animal ways, it looks as if humans and animals have different natures. But although our natures are different, the background is the same. Because where we live and the way we live is different, the application of the truth should be different. It is like the way we use electricity. Sometimes we use it as a light, and sometimes as a loudspeaker.
Human beings have their nature and animals have their nature.
But even though our ways of expressing our natures are different, our natures have the same basis. That is the application of the truth. This is actually what Sekito is talking about. We should not be attached to the difference in usage, because we are using the same true nature, or Buddha nature in different ways. That is how to find the true nature within ourselves in everyday life.