Nicene and Post-Nicene Fathers, Ser. II, Vol. XI:
The Works of John Cassian.: Chapter V. That anxiety of heart is made worse rather than better by restlessness of body.

Chapter V.

That anxiety of heart is made worse rather than better by restlessness of body.

Nor is it wonderful if one who lives in a cell, having his thoughts collected together as it were in a narrow cloister, is oppressed by a multitude of anxieties, which break out with the man himself from the confinement of the dwelling, and at once dash here and there like wild horses. But while they are now roaming at large from their stalls, for the moment some short and sad solace is enjoyed: but when, after the body has returned to its own cell, the whole troop of thoughts retires again to its proper home, the habit of chronic licence gives rise to worse pangs. Those then who are unable and ignorant how to struggle against the promptings of their own fancies, when they are harassed in their cell, by accidie attacking their bosom more violently p. 534 than usual, if they relax their strict rule and allow themselves the liberty of going out oftener, will arouse a worse plague against themselves by means of this which they fancy is a remedy: just as men fancy that they can check the violence of an inward fever by a draught of the coldest water, though it is a fact that by it its fire is inflamed rather than quenched, as a far worse attack follows after the momentary alleviation.