Kreeft uses the image of the human experience of love to describe the essence of the Holy Trinity. According to the author, love is impossible without three components: the beloved one, the lover, and the mutual affection between them.
Love is regarded as the essence of the divine nature, and if God is not represented in the Trinity, he cannot illustrate this concept. In the case of the Holy Trinity, God is the lover, the beloved one, and the essence of this feeling, which corresponds to the religious point of view described in the Scripture. Kreeft writes that human reason cannot rationally understand the Trinity because it surpasses human abilities.
However, it does not contradict the cause, which means that people have no opportunities to grasp the meaning of something beyond their knowledge. The Trinity and faith in the only God are the divine revelations that expand human understanding of the universe.