In The Babadook, the monster wears clothes similar to those we find out the father wore, in fact the mother was scared to see his clothes hanging against the wall in one scene, mistaking him for the dark figure of the Babadook. Near the end of the film the Babadook appears to the mother as her dead husband, they hug and later he demands she bring him 'the boy'.
So my question is, is the Babadook in some way meant to symbolise the father, and if so, how do we interpret certain aspects of its 'powers', such as it's ability to possess the mother? Also how do we interpret the ending, why must the Babadook be kept in the basement and fed worms?