The Sabbath (cf. Exod. 16:23; 20:10) signifies rest from the passions, and from the intellect’s gravitation towards the nature of created beings. It signifies the total quiescence of the passions, a complete cessation
Maximos the Confessor offers the defining depth-psychological reading of the Sabbath as a figure for the soul’s utter stillness before the divine, achieved through virtue and spiritual knowledge rather than external observance.
, The Philokalia, Volume 4, 1995thesis