Purity of Heart Is to Will One Thing is not a piece of fiction, so we cannot speak about literary characters in this work in the strictest sense of this word. It is rather a devotional treatise aimed at exhorting a follower of the Christian religion to embrace his calling in its fullness. Kierkegaard’s approach is more philosophical than dogmatic. Such notions as the Eternal, the One, and the Individual feature prominently in the work as the author focuses on man in relation to various factors of his spiritual and practical life. It is from this perspective that we can talk about “characters” in the Purity of Heart Is to Will One Thing. Rather than being separate personages, they are more like various facets, or aspects of one man.
First, Kierkegaard speaks about the empirical human before the face of the Eternal. This person is nominally Christian, but it is assumed that they are not fully aware of their status, calling, or duties in their finite existence in the temporal world. Kierkegaard places this empirical person in a situation where they need to recognize their finitude as they face the Eternal. As they do, they are assisted by the Providence that lead them to remorse, repentance, and confession. The attitude which a person assumes once they are moved to these spiritual actions is the only proper one that they can show towards the Eternal. Such a person becomes at one with themselves. And in the grand act of repentance, the Eternal and the temporal converge:
From the point of view of the Eternal, repentance must come instantaneously, indeed there is not even time to utter the words. But man is in the temporal dimension and moves along in time. Thus the Eternal and the temporal seek to make themselves intelligible to each other . . . (chapter 2)
Second, Kierkegaard talks about a repentant person as an active sufferer for the sake of the Eternal. But prior to that, he proves that the Eternal, the One, and the Good are essentially the same reality, and that a person needs to seek this One and Good with all their heart and mind. However, as a person does this, they face various obstacles, such as seeking the Good out of fear of punishment or a lack of commitment, to name just a few. In order to will the Good in truth, they must be willing to suffer all for the sake of the Good. Kierkegaard comments,
A man may have suffered throughout his whole life without it ever, in any true sense, being able to be said of him that he has been willing to suffer all for the Good… When the sufferer, on the other...
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