The accidental or negligent extinction of a domestic hearth-fire represented a failure of domestic and religious care for the family; failure to maintain Hestia's public fire in her temple or shrine was a breach of duty to the broad community. A hearth fire might be deliberately, ritually extinguished at need, and its lighting or relighting should be accompanied by rituals of completion, purification, and renewal, comparable with the rituals and connotations of an eternal flame and of sanctuary lamps. At the level of the "polis", the hearths of Greek colonies and their mother cities were allied and sanctified through Hestia's cult. Athenaeus, in the Deipnosophistae, writes that in Naucratis the people dined in the Prytaneion on the natal day of Hestia Prytanitis ().