Book 1, Chapter 6 — Light within Darkness

The Soul is not to be disquieted, that it sees it self encompassed with darkness, because that is an instrument of its greater felicity.

39. There are two sorts of darkness : some unhappy, and others happy : the first are such as arise from sin, and are unhappy, because they lead the Christian to an eternal precipice. The second are those which the Lord suffers to be in the Soul, to ground and settle it in vertue; and these are happy, because they enlighten it, fortifie it, and cause greater light therein, so that thou oughtest not to grieve and disturb thy self, nor be disconsolate in seeing thy self obscure and darksom, judging that God hath failed thee, and the light also that thou formerly had the experience of; thou oughtest rather at that time persevere constantly in Prayer, it being a manifest sign, that God of his infinite mercy intends to bring thee into the inward path, and happy way of Paradise. O how happy wilt thou be, if thou embrace it with peace and resignation, as the instrument of perfect quiet, true light, & of all thy spiritual good.

40. Know then that the streightest, most perfect and secure way of proficients, is the way of darkness: because in them the Lord placed his own Throne; And (Psalm 18.) He made darkness his secret place. By them the supernatural light which God infuses into the Soul, grow and increases. Amidst them wisdom and strong love are begotten, by darkness the soul is annihilated, and the species, which hinder the right view of the divine truth, are consumed. By this means God introduces the Soul by the inward way into the Prayer of Rest, and of perfect contemplation, which so few have the experience of. Finally; by darkness the Lord purgest the senses and sensibility, which hinder the mystical progress.

41. See now if darkness be not to be esteemed and embraced. What thou oughtest to do amidst them, is to believe, that thou art before the Lord, and in his Presence; but thou oughtest to do so, with a sweet and quiet attention; not desire to know any thing, nor search after delicacies, tenderness or sensible devotions, nor do any thing but what is the good will and pleasure of God; Because otherwise thou wilt only make circles, all thy life time, and not advance one step toward perfection.