the moon depends on the sunlight to allow it to shine and even then it isn't bright but we see it and it is beautiful
the sun is visible except at night when it allows the moon a glimpse, into the spotlight
what if the moon believed that she had no use just stealing the light of others using it to shine
but really, she does have a purpose she reminds us that the sun is always there even at night when we cannot see her, her light being swallowed by the moon allowing the night to shine and preventing a sky of doom