Claim. Cheon Il Guk (天一國) — the “Nation of Cosmic Peace and Unity” — is etymologically and structurally the nation in which two beings (heavenly and earthly, husband and wife, mind and body) become substantially one.
Elaboration. SMM grounds the term in its Chinese characters: “Cheon Il Guk (天一 國) means the Nation of Cosmic Peace and Unity. When you write separately the parts of the Chinese character for Cheon (天 Heaven), you have ‘two people’ (二人). This means two worlds. They are level. The character has a dual structure: a person of heaven and a person of the earth. Your mind and body constitute a duality, don’t they? Are your mind and body united or not? People who are fighting cannot be citizens of Cheon Il Guk” (1.1. The owner of Cheon Il Guk, 364-101 2002.1.1). He generalizes: “Cheon Il Guk is the nation in which two people become one. Heaven requires that there be two people. To be parents, there must be two people. All the things of creation are in pairs” (2002.2.19). Citizenship is therefore relational, not territorial — the dual-characteristics in give and take determine eligibility.
See also. csg-owners-of-cheon-il-guk-fulfill-four-dutiful-roles, csg-only-restored-families-can-recite-the-family-pledge