God} is called light, Who transcends all light, because He illumines us; and life, Who is beyond all life, because He vivifies us. Shining around us all, and encircling and cherishing us with the glory of His divinity, He is called raiment, and so we saw that we clothe ourselves with Him Who is intangible in every way and Who cannot be grasped. Uniting Himself without mingling with our soul, and making it all as light, He is said to indwell us and, uncircumscribed, become circumscribed.

(Saint Symeon the New Theologian)