''John Cassian, a monk and theologian wrote in the early 5th century about an ancient Greek emotion called acedia. A mind “seized” by this emotion is “horrified at where he is, disgusted with his room…It does not allow him to stay still in his cell or to devote any effort to reading”. He feels:

such bodily listlessness and yawning hunger as though he were worn by a long journey or a prolonged fast…Next he glances about and sighs that no one is coming to see him. Constantly in and out of his cell, he looks at the sun as if it were too slow in setting.

Noonday demon

Etymologically, acedia joins the negative prefix a- to the Greek noun kēdos, which means “care, concern, or grief”. It sounds like apathy, but Cassian’s description shows that acedia is much more daunting and complex than that.

Cassian and other early Christians called acedia “the noonday demon”, and sometimes described it as a “train of thought” [and as a] combination of listlessness, undirected anxiety, and inability to concentrate. Together these make up the paradoxical emotion of acedia''.

JLZ