Claim. Love that begins inside a united family blossoms outward into love for society, nation, and humanity, because the loves practiced inside the family (parental, conjugal, filial, sibling) are the model that scales by extension.
Elaboration. “Once your mind and body are united centered on God, circular motion manifests in all sorts of forms and figures. That is why the older sibling must love the younger, following the example of their parents loving them … the love within the family blossoms. Then that love becomes the love within a society, and then the love within a nation … the love of the whole world” (1.2. The family gives birth to the love for society, nation, and humanity, 28-170, 1970.1.11). True love is given a composite definition: “What is true love? It is parental love, conjugal love, and filial love put together” (ibid, 43-323, 1971.5.2). The expansion is iterated: “people who love their family are called filial sons or daughters, people who love their nation are called patriots, and people who love the world are called saints” (Blessed Family-925). The implication: macro-ethics is downstream of micro-affection; sainthood is a structural expansion of trained family love, not an alternative path.