Flower puzzle assembly in commemoration of the Day of the Dead in the Cathedral of Iztapalapa, CDMX, Mexico

flower puzzle assembly commemoration day of the dead iztapalapa cathedral cdmx mexico tradition cultural celebration art community heritage remembrance ritual spiritual offering colors symbolism handcrafted mosaic petals calavera marigold altar memories unity decorations religious custom aztec indigenous soul family respects ancestors memento vibrant folklore honor fragrance elaborate decorative intricate multigenerational noviembre remember