In A Christmas Carol what does light symbolize?

some i know of are

ghost of yet to come - death

ghost of Christmas past - enlightenment or truth

ghost of Christmas present - Christmas spirit

tiny Tim (his employs son - bob cratchits kid) - consequence's or optimism

turkey (that he buys for bob cratchit and his family) - generosity

bed curtains - life

church bells - god

Fred (his nephew) - joy or second chances

fan (his sister) - hope or reuniting

hope this helps!