where did knock on wood superstition come from
Knocking on wood The origin of the custom may be in German folklore, wherein supernatural beings are thought to live in trees, and can be invoked for protection.[1][2]
Into the Woods (film) A baker (James Corden) and his wife (Emily Blunt) wish for a child but suffer under a curse laid upon the baker's family by a Witch (Meryl Streep) who found the baker's father robbing her garden when his mother was pregnant. Because the baker's father also stole some magic beans, the witch was punished with the curse of ugliness by her own mother. The witch offers to lift the curse but only if the baker and his wife obtain four critical items for her to make a potion: a cow as white as milk, a cape as red as blood, a strand of hair as yellow as corn, and a slipper as pure as gold. The witch later tells the baker that she asked him to do this task for her because she is not allowed to touch any of the objects.