14 Our Lord also uses other means of rousing the soul; for instance—when reciting vocal prayer without seeking to penetrate the sense, a person may be seized with a delightful fervour237237Ibid. ch. xv. 12. On the matter treated by St. Teresa in this chapter, compare St. John of the Cross, Spiritual Canticle, stanza i. (circa finem), stanza ix.; The Living Flame of Love, stanza ii. as if suddenly encompassed with a fragrance powerful enough to diffuse itself through all the senses. I do not assert that there really is any perfume but use this comparison because it somewhat resembles the manner by which the Spouse makes His presence understood, moving the soul to a delicious desire of enjoying Him and thus disposing it to heroic acts, and causing it to render Him fervent praise.
15. This favour springs from the same source as the former, but causes no suffering here, nor are the soul’s longings to enjoy God painful: this is what is more usually experienced by the soul. For the reasons already given there appears no cause here for fear, but rather for receiving it with thanksgiving.
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Source: Interior Castle (CCEL)