Original: CR ritual structures are based on the ancient Celtic cosmology of the "Three Realms" - Land, Sea and SkyMac Mathúna, Liam (1999) "Irish Perceptions of the Cosmos" Celtica vol.
Simplified: CR ritual structures are based on the ancient Celtic idea of the "Three Realms" - Land, Sea and SkyMac Mathúna, Liam (1999) "Irish Perceptions of the Cosmos" Celtica vol.