When one has attained the level of good thoughts, one should take extreme care to keep these points in mind, lest out of negligence or conceit one is deprived of God's grace, as St Isaac says. When God-given thoughts increase in a man's soul and lead him toward greater humility and compunction, he should always give thanks, acknowledging that only by God's grace does he know such things, and regarding himself as unworthy of them.
