So with two seeming bodies but one heart,
Two of the first, like coats in heraldry,
Due but to one, and crownèd with one crest.
– William Shakespeare
A Midsummer Night’s Dream, Act 3, Scene 2. Helena employs a metaphor to describe her close friendship with Hermia as two bodies with one heart. In a simile she likens this to doubled coats of arms belonging to a husband and wife, but sharing a single crest.