As the source of all things, the sun is silent but indispensable. Some people compare it to the mother and the most important person. The sun tattoo generally refers to the important person, or symbolizes warmth, hope and enthusiasm, and can also be used as a couple's tattoo.
The moon corresponds to the sun. Generally speaking, the sun represents men and the moon represents women, because in the tattoo world, the sun and the moon often appear in pairs. Love people with the sun and moon tattoo it to commemorate pure love, complement each other, is the only one in each other's eyes.
Source: @renafouskariniss