Caristia

Ovid, in Fasti, describes the holiday of Caristia, a holiday to celebrate living family members on February 22nd, following Parentalia, a long holiday for deceased family members. 

There are some interesting things of note: (1) The reference point for the family gathering is the family gods. (2) It is virtuous to burn incense and offer food to the family gods. (3) Ovid, if he's not being sarcastic, thinks that the goddess Concordia is present at Caristia. 

The next day has its name, Caristia, from our dear (cari) kin, / When a throng of relations gathers to the family gods. It's surely pleasant to turn our faces to the living, / Once away from relatives who have perished, / And after so many lost, to see those of our blood / Who remain, and count the degrees of kinship. / Let the innocent come: impious brother be far, / Far from here, and the mother harsh to her children, / He whose father's too long-lived, who weighs his mother's years, / The cruel mother-in-law who crushes the daughter-in-law she hates. / Be absent Tantalides, Atreus, Thyestes: and Medea, Jason's wife: / Ino who gave parched seeds to the farmers: / And Procne, her sister, Philomela, and Tereus cruel to both, / And whoever has gathered wealthy by wickedness. / Virtuous ones, burn incense to the gods of the family, / (Gentle Concord is said to be there on this day above all) / And offer food, so the robed Lares may feed from the dish / Granted to them as a mark of esteem, that pleases them. / Then when moist night invites us to calm slumber, / Fill the wine-cup full, for the prayer, and say: 'Health, health to you, worthy Casar, Father of the Country!' / And let there be pleasant speech at the pouring of the wine.

Translated by A.S. Kline and reprinted with permission. Original here.