It treats of but one passion, love, and yet it gives the most subtle study in existence. In it all the ways of loving are minutely analysed in interminable conversations. All the reasons why man should love are given, with all the reasons why he should not love. All the joys found by the lover in his sufferings are set forth, with all the sufferings that his joys reserve for him. All the reasons for fidelity and all the reasons for inconstancy are openly dissected. A complete list is given of all the intellectual sensations of love (and of some sensations which are not intellectual). In short, _Astrée_ is a diagnosis of the spiritual, mental, and moral condition of the love-sick. It contains all the "cases of conscience" which may or might arise, under the same or different circumstances, in the lives of people who live to love, and who, thus loving, see but one reason for existence--people who severally or individually, each in his own way and according to his own light, exercise this faculty to love,--still loving and loving even then, now, and always. D'Urfé's conception was of the antique type. He regarded love as a fatality against which it were vain to struggle. Toward the middle of the book the sorrowful Celadon, crushed by the wrath of _Astrée_, is hidden in a cavern where he "sustains life by eating grasses." The druid Adamas knows that Celadon is perishing by inches, and he essays to bring the lover to reason. Celadon answers him: "If, as you say, God gave me full possession of power over myself, why does He ask me to give an account of myself?--for just as He gave me into my own hands and just as He gave me to myself, so have I given myself to her to whom I am consigned for ever. First of all! If He would have account of Celadon, let Him apply to her of whom I am! Enough for me if I offend not her nor violate my sacred gift to her. God willed my life, for by my destiny I love; and God knows it, and has always known it, for since I first began to have a will I gave myself to her, and still am hers. In brief, I should not have been blest by love as I have been in all these years had God not willed it.[32] If He has willed it would it be just to punish me because I still remain as He ordained that I should be? No! for I have not power to change my fate. So be it, if my parents and my friends condemn me! They all should be content and glad, when for my acts, I give my reason; _that I love her_." "But," answered Adamas, "do you count on living long in such away?" "Election," answered Celadon, "depends not on him who has neither will nor understanding."