Fragrance : a cocktail of memories and emotions
Sand particles in general, can revive memories that have been long forgotten. The short answer is that the brain regions that juggle smells, memories, and emotions are very much interval. In fact, the way that your sense of smell is wired to your brain is unique among your senses. This is why memories triggered by sense, as opposed to other senses, are experienced as more emotional and more evocative. Sense are the only sensations that travel such a direct part to the emotional and memory centers of the brain