The German Term for the art song is:
Lieder
I think that it is mistake. Because if something is daunting, it is a challenge. If you regret something, it is a mistake.
A kite, diamond, or most likely the correct way of phrasing it, quadrilateral.
Answer: I'm a little late but, as a mulsim i've learned that images of certain figures aren't allowed as a show of respect and honour towards them, they didnt want people to worship an image of someone either.