Husserl's phenomenology is a philosophy of consciousness.If you use a word to sum up his philosophy,it is intention.Intention is the fundamental philosophy of Husserl's phenomenology,the basic concept,the starting point of the concept.That is to say,phenomenology begins with intention,and Husserl's phenomenology of perception theory through analysis of intention has been further expanded,and from the perception of things(external perception),self-perception(internal perception),a strange perception(to my perception of him) is present on the awareness of the Co-occurrence structure described.