The same year that her brothers left Siena, 1370, marks an epoch in Catherine's life. "Do you not see, father," she said to Frate Tommaso della Fonte, "that I am no longer she who I was, but that I am changed into another?" Praying as usual in the Cappella delle Volte in San Domenico, her Divine Spouse had appeared to her in vision, and drawn forth her heart from her side, placing His own, _uno cuore rubicundo e lucidissimo_, therein instead. Meditating upon the Passion, she began to endure in her body and in her soul what Christ had endured for man. A little later she seemed to be dying, or actually dead. In this suspension of her life or mystical death--call it what you will--she beheld the spiritual lives of Hell, Purgatory, and Paradise, and was bidden to return to the world, to convince it of sin and error, to warn it of impending peril. "The salvation of many souls demands thy return," said the voice of the Divine Spouse in her heart, "nor shalt thou any longer keep that way of life that up to now thou hast kept. No longer shalt thou have thy cell for dwelling-place; nay, thou shalt go forth from thy own city for the utility of souls. I shall be ever with thee: I shall guide thee, and lead thee. Thou shalt bear the honour of My name, and shalt give spiritual teaching to small and great, to the laity no less than to clerics and religious; for I shall give thee such speech and wisdom that no one shall be able to resist. I shall bring thee even before Pontiffs and before the rulers of the Church and of the Christian people, to the end that, as is my wont, I may by means of the weak confound the pride of the strong."[19] Henceforth her work was done in the light of the world. Incorrigible sinners, like that _singolare ribaldo_ Andrea di Naddino Bellanti, were moved to repentance by her prayers; felons, dying in torments under the [Illustration: _Lombardi, Siena_ ST CATHERINE OF SIENA (ANDREA DI VANNI)] red-hot pincers of the executioners (_attanagliati_ in the horrible phrase of the epoch), turned their despairing blasphemies to words of joy and comfort; fierce faction leaders, like Giacomo Tolomei, laid aside their fury and went humbly to confession. When the pestilence raged in Siena in 1374 and many fled the city, Catherine was foremost in tending the stricken, in encouraging the dying, preparing them for death, even burying them with her own hands. "Never," writes one of her friends, "did she appear more admirable than at this time."