According to the Buddha, beings exist as either humans, animals, gods, angry spirits, hungry spirits or purgatorial beings. Rebirth in one or another of these states depends on the kamma one has generated by one’s intentional thoughts, speech and actions. The excessively greedy, constantly dissatisfied and hankering person may well be reborn as a hungry spirit. The Tipitaka gives only brief descriptions of these spirits but in one place a leper is described as being ‘a peta-like human’ (manussapeta, Ja.V,68), indicating that they are rather miserable beings. There is no suggestion in the Buddhist scriptures that hungry spirits can haunt humans or can be ‘conjured up’ or contacted. However, they can, apparently, be sensitive to what their living relatives may be thinking or feeling about them.
The importance of hungry spirits in the Buddha's thinking can be judged by the fact that he considered talking about them (petakatha) to be an unbecoming and unskillful type of speech (D.I,8).
The picture shows hungry spirits as imagined by a late medieval Japanese artist. The swollen belly and small neck or mouth suggesting that the amount of sustenance consumed can never satisfy the hunger, is common to the conception of hungry spirits in all Buddhist traditions.