Pitrs
The Pitris (Sanskrit: पितृ, the fathers) are the spirits of the departed ancestors in Hindu culture. They are often remembered annually. Jathera or Dhok, from "jayestha" (elder) and "dahak" ("dahak" the sacred fire), are samadhi (shrines) dedicated to the worship of ancestors. The human and divine Pitris. The most complete accounts about the s are found in the "Vayu Purana" and "Brahmanda Purana" and both are practically identical. The account in the "Harivamsha" is shorter but agrees closely with them. The similar but brief accounts are also found in the "Matsya Purana" and "Padma Purana". According to these accounts  there are different classes of the s and they have different origins, forms, grades and abodes. A broad distinction exists between the ' (divine s) and the ' (s who were deceased human beings). Some of the s dwell in the heavenly abodes while other dwell in the netherworlds. The former who dwell in the heaven were considered as the gods and the gods were also considered as the s. The s are most primeval deities and they never cease to exist. The "" (ancestors of human beings) can attain the same level of the divine s and live with them in heaven  by righteousness. They are reborn at the end of every thousand "mahayugas" and revive the worlds. From them all the Manus and all progeny at the new creation are produced. Seven classes of the divine Pitṛs. There are seven classes of the (divine s), three of them are "amurtayah" (incorporeal) while the other four are "samurtayah" (corporeal). The three incorporeal orders of the Pitṛs are "Vairaja"s, "Agnishvatta"s and "Barhishada"s. The four corporeal orders of the Pitṛs are "Somapa"s, "Havishmana"s, "Ajyapa"s and "Sukalin"s (or "Manasa"s) The Pitṛ-Vaṁśa (genealogy of the Pitṛs). All seven classes of the divine Pitṛs had each  one "mānasī kanyā" (mind-born daughter). "Mena", the wife of Mount Himavat was the daughter of the "Vairaja"s. "Acchoda", the river was the daughter of the "Agnishvatta"s. "Pivari", the wife of the sage Śuka was the daughter of the "Barhishada"s. "Narmada", the river was the daughter of the "Somapa"s. "Yashoda" was the daughter of the "Havishmana"s was the wife of "Vishvamahat" and mother of Dilipa. "Viraja", the wife of king Nahusha was the daughter of the "Ajyapa"s and "Go" or "Ekshringa", the wife of the sage Shukra was the daughter of the "Manasa"s.