What is the difference between a preta and a pitṛ?

preta is the term for the newly departed during the first days; after sapiṇḍīkaraṇa they join the pitṛs, the honoured ancestors.

In śrāddha texts, “preta” simply means “one who has gone forth” — the departed in the transitional period right after death. It does not mean a ghost in the popular, frightening sense. The daily piṇḍas of the first ten days are understood to build a subtle body for the journey, and the 12th-day rite of sapiṇḍīkaraṇa unites the departed with the father, grandfather and great-grandfather (or the corresponding mothers) as a pitṛ.

Pitṛs are the revered ancestors, remembered in the annual śrāddha and in Pitṛ Pakṣa, and seen as protective presences who bless the family.

So the rites of the first year are meant to help a loved one move peacefully from the state of preta to the state of pitṛ. Families need not fear that their loved one is a wandering spirit; the rites, done sincerely, are exactly the care tradition prescribes.

Source: Garuḍa Purāṇa (Pretakhaṇḍa); Dharmasindhu

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