It serves as a metaphor for the "hero's journey," where a seemingly ordinary "Wart" (as Arthur is called in T.H. White's The Sword in the Stone ) discovers a hidden, divine purpose.
The legend persists because it speaks to universal human themes:
In these early versions, the sword often appears miraculously in a churchyard on Christmas Eve, indicating that Arthur’s power is a gift from God rather than just political might.
While modern media often merges them, classic legends like Thomas Malory’s Le Morte d'Arthur treat them as two different blades. The first sword is pulled from the stone to prove Arthur is king; the second, Excalibur , is later given to him by the Lady of the Lake after the first is shattered in battle. 2. The Real-Life "Excalibur" (Tuscany, Italy)
The "sword in the stone" as a test of lineage was first introduced by the 12th-century French poet Robert de Boron in his work Merlin .