What is the symbolism of the ghost of Christmas past?

there are many symbolic things about the ghost of Christmas past like how it wheres flowers and holds a branch of holy to symbolize that Christmas cheer should be remembered throughout the year not just during winter time also the light in the ghosts cap symbolizes enlightenment. the ghost form is unclear because it switches between an old man and a child constantly to symbolize that it is the ghost of distant and not so distant past its belt shines sometimes white and sometimes dark to symbolize the good and the bad memories of his(scrooges) Christmas past.