as a crow fan, i love it!
My grandma says the same. Also. if one gets into your house, someone is to die soon.
I've been led to believe that this is the 'secret language of the soul' - as any other language, it has to be learnt. Beeing able to 'speak' it, so to say, does not automatically mean that one understands the deeper meaning of it as well!?:) As with almost everyting else, to really master it, one has to practice it daily...!?:)
Also my mother thought so!