noun
spirit of the deceased
Buddhist term for the soul or spirit of a dead person, especially during memorial services and Obon.
お盆には、先祖の精霊が戻ってくると信じられている。
During Obon, it is believed that the spirits of ancestors return.
精霊流
Shouryou nagashi is a ceremony to send off the spirits of the deceased.
From Middle Chinese 精靈 (tsjeng leng), meaning 'spirit' or 'soul'. The kanji 精 (refined, spirit) and 霊 (spirit, soul) combine to convey the idea of a refined or pure spirit.