Some interesting quotes:

Love at First Sight:

Classical authors (as exemplified by Ovid in his The Art of Love, Achilles Tatius’ Leucippe and Clitophon, or Dido’s passion for Aeneas in Virgil’s Aeneid) explained the phenomenon of “love at first sight” through an elaborate metaphoric (and sometimes mythological) psychological schema: the image of the beautiful loved object (and in particular the sight of his or her eyes) was said to be like arrows; if these arrows were to arrive at the lover’s eyes, they would then travel to and ‘pierce’ and ‘wound’ his or her heart and overwhelm him/her with desire and longing (love sickness). In the event that the loved object was cruel or uninterested, this desire would drive the lover into a state of depression, causing lamentation and illness.

Walpurgis Night:

Historically the Walpurgisnacht is derived from Pagan spring customs, where the arrival of spring was celebrated with bonfires at night. Viking fertility celebrations took place around February 25 and due to Walburga being declared a saint at that time of year, her name became associated with the celebrations. Walburga was honored in the same way that Vikings had celebrated spring and as they spread throughout Europe, the two dates became mixed together and created the Walpurgis Night celebration. The main mascot of Walpurgis Day is the witch.