祖母は祖父の命日には必ず精進をする。
My grandmother always abstains from meat and fish on the anniversary of my grandfather's death.
喪中は精進を守って、肉や魚を口にしなかった。
During the mourning period, they kept to a vegetarian diet and ate no meat or fish.
法事の間は家族そろって精進した。
The whole family abstained from meat and fish during the memorial service.