Ari Aster's folk horror movie Midsommar is filled with obscure symbolism, to the extent that the Midsommar deaths suggested a hidden connection to the four elements that might expand the whole movie. One theory about the deaths in Midsommar suggests that each side-character's death represents one of the four elements: earth, fire, water, and air. Through these four Midsommar deaths, four seasons are invoked in the rituals of the Hårga cult. This has led to some deep theories about the significance of how each Midsommar character dies.

https://screenrant.com/midsommar-movie-theory-character-deaths-four-elements/