"Are we only half-knowing?" Smell is the only one of the five human senses that transmits information directly to the appropriate area without filtering or integrating it through the thalamus. Therefore, we can actively recall a memory, but without the scent it contains. "Transparently approaching each other, exchanging memories." We need others to lead us to see a world invisible to one person alone. A glass plate, like a watery base, and a stainless steel stone, approaching each other, resemble fragments of a complete memory, snipped from a stream. Once the stainless steel stone combines with water and collides with it, it will exhibit its odor-dispelling properties. But without the stone, will the glass plate still remember its identity? Placing stainless steel rings, various ornaments, and minerals on its body will remind it of its former symbolism of water.