Conversation so far:
what is the flower of the dead in spanish?
Flower of the dead is called flor de muertos in Mexico.
what are the uses of flor de muertos in Mexico?
the flor de muertos in Mexico and is used in the Día de Muertos celebration every 2 November
what is the Día de Muertos celebration called in English?
Día de Muertos is Day of the Dead in English

Question: what is this celebration about?
Self-contained rewrite: what is the Day of the Dead celebration about?