"If, therefore, we learn persistently to be detached from the good things of this world, we shall be able to unite the earthly appetite of the soul to its spiritual and intellectual aspiration, through the communion of the Holy Spirit who brings this about within us. For unless His divinity actively illumines the inner shrine of our heart, we shall not be able to taste God's goodness with the perceptive faculty undivided, that is, with unified aspiration."