
John brings the topic of chastity to a close in the final three pages of this chapter. He has already exposed the deceptiveness of passions and their devious progress in our souls. He has broken down and demystified the stages of their slow progress and shown us how we can choose to stop them at any stage.
He now muses about their origins. How is a passion generated? Is it because our body is somehow wired to respond to certain triggers? Is it the context? Is it the environment? He doesn’t feel pressed to provide an answer. What really matters is not to underestimate them. We should remember that a flickering spark– smell, sight or touch—can grow into a raging fire in no time.
What is the antidote for being tempted by the thrill of fire? John brings up the role of simplicity as a “breastplate against the cunning evil of the demons.” He refers to it as “Holy Simplicity.” Simplicity leads to humility and will guard us against delusion and false pride. It will afford us an uncluttered, clear mind that can detect dangerous passions before they spread. With simplicity and humility we will not be tempted to overestimate our own power and underestimate the first traces of a passion in our soul, certain that we will be able to stop and control it at will.
Those who are vainglorious, he continuous further down, are particularly prone to priding themselves for rooting out passions through prayer and fasting, unaware of new passions that have taken their place. Chastity and humility acknowledge our human weakness in being tempted by passions and God’s grace in overcoming them.
