C.G. Jung's work on synchronicity discusses how emotional states affect our level of consciousness. He refers to this phenomenon as "abaissement du niveau mental," a French term meaning a lowering of mental activity. When we experience intense emotions, our conscious awareness narrows, and the unconscious mind becomes more dominant. This shift can be observed not only in those studied by psychologists but also by everyday people noticing changes in themselves or others during strong emotional experiences.

Jung highlights that this alteration in consciousness can provide insights into the human psyche, especially during significant emotional events. Such moments can lead to a profound understanding of ourselves and our connections with others, revealing how deeply our emotions resonate within the layers of our consciousness. The interplay between consciousness and the unconscious during moments of heightened feelings emphasizes the complexity of the human experience and the role that emotions play in shaping our perceptions.