The gnomon, historically defined as the part of a sundial that casts a shadow, symbolizes the passage of time, enlightenment, and the dynamic relationship between light and dark. In various cultures, it represents balance, as it is tied deeply to the sun's movements and the natural rhythms of life. A gnomon tattoo may incorporate elements related to astronomy, such as celestial bodies or geometric patterns, emphasizing a connection to cosmic principles. Variations can include methods of timekeeping or artistic interpretations that extend into nature, like trees or landscapes influenced by sunlight. Ideal placements for this tattoo include the forearm, back, or shoulder, where it can be showcased for personal reflection or as a conversation starter about time and existence.