Butterfly

The butterfly's complete metamorphosis is so plainly transformative that the symbolism scarcely needs argument, and two traditions built on it in very different registers. In Greek, the one word psyche means both soul and butterfly, and the personified Psyche is shown with butterfly wings in Hellenistic and Roman art; the insect that leaves the husk of the chrysalis became a natural figure for the soul leaving the body. In Chinese thought the Zhuangzi records the philosopher waking from a dream of being a butterfly and asking whether he is a man who dreamed he was a butterfly or a butterfly now dreaming he is a man, a passage about the instability of the self, not about the insect's life-cycle.

Aztec religion gives the butterfly a fiercer aspect than the Greek Psyche: Itzpapalotl, the Obsidian Butterfly, is a warrior goddess shown with butterfly wings edged in stone knife-blades and the clawed feet of a predator, one of the fearsome tzitzimime associated with the stars and with the souls of women who died in childbirth, honoured as warriors in their own right. Where the Greek and Chinese butterfly figures above are gentle emblems of soul and dream, the Aztec butterfly carries an explicitly martial and dangerous power.

The chrysalis-to-adult transformation gave the butterfly a natural place in Christian resurrection imagery, where it appears as an emblem of the soul reborn, sometimes shown in the hand of the Christ child. The same logic underlies its funerary use in many cultures. In Mexico the arrival of the overwintering monarch butterflies, which reach their fir forests around the start of November, coincides with the Day of the Dead, and popular observance associates the returning butterflies with the returning souls of the dead, a correspondence of natural timing and ritual calendar rather than a doctrine, but a genuinely held and widely reported one. Across these settings the butterfly consistently signifies passage: soul, death and what may lie beyond it.

The migration itself is a genuine natural wonder worth stating plainly: the monarchs that arrive in the Mexican fir forests each November have never made the journey before, since the butterflies that flew south the previous year die in Mexico or on the way back north, and it takes three or four intervening generations, each living only a few weeks, to repopulate North America each summer before a final, long-lived generation undertakes the return flight south. The migratory monarch population has fallen sharply enough that the IUCN listed it as endangered in July 2022, adding a real conservation urgency to a butterfly already carrying so much symbolic weight.