We thus become temples of God whenever earthly cares cease to interrupt the continuity of our memory of Him. - Basil of Caesarea

We must try to keep the mind in tranquility. For just as the eye which constantly shifts its gaze, now turning to the right or to the left, now incessantly peering up and down, cannot see distinctly what lies before it, but the sight must be fixed firmly on the object in view if one would make his vision of it clear, so too man's mind when distracted by his countless worldly cares cannot focus itself distinctly on the truth.

Ὥστε ὁ ἀγαπῶν τὸν πλησίον ὡς ἑαυτὸν οὐδὲν περισσότερον κέκτηται τοῦ πλησίον·

βασιλεία τῶν οὐρανῶν ἐντὸς ὑμῶν ἐστί. περὶ δὲ τὸν ἐντὸς ἄνθρωπον οὐδὲν ἕτερον ἢ θεωρία συνίσταται. θεωρία ἂν εἴη λοιπὸν ἡ βασιλεία τῶν οὐρανῶν.