Such understanding necessarily implies a mutuality and reciprocity between people, earth and the cosmos. Idealists seek mutuality in their personal relationships. Rather, the experience of "mutuality of being" that we call kinship is a cultural phenomenon. This will lead to a greater unity, mutuality, and harmony. Stephenson LJ discussed what "mutuality of obligation" meant. The sexologist, it seems, is incapable of imagining mutuality in this context. This theme of mutuality still exists in East Asian cultures even to this day. Bowlby did not describe mutuality in attachment. Such associations are based on mutuality and a free and spontaneous co-operation between equals. A focus on mutuality is prevalent in East Asian cultures to this day. Similar findings regarding the mutuality of domestic violence have been confirmed in subsequent studies. All forms of set-off require mutuality between claim and cross claim. The duty assigned to every category is differential but based on mutuality.