In the poem, "this shore" thinks that happiness is on the other shore, and the "other shore" on the other shore thinks that happiness is on "this shore". Regarding this phenomenon, the author uses "illusion" in the title to evaluate it, so he should have a negative attitude. Step three: clarify the relationship. From the perspective of reasons, why do "this shore" and "the other shore" have such an illusion? What's wrong with "this shore" and "the other shore"? The reason is that you don't pay attention to the happiness around you and don't know how to cherish it. From this we can determine the angle of intention - 1. Happiness is around you, you must be good at discovering yourself, appreciating yourself, and believing in yourself. 2. View yourself correctly and cherish what you have.