What is a Stand?
The Balkans have some of the world's strangest mythology; an example would be the spirit who judges your life after death. This spirit follows you everywhere and all the time, and changes its shape when you make a decision in your life. This is so that the afterlife personnel can decide whether to send you to Heaven or Hell just by looking at it (they seem to be lazy). A hero can overcome death and be able to control his own spirit; this relates to stand arrow usage as those fit for stands survive it.
And what is this spirit named? It is called an Hour. The old saying "Your Hour has come" means that your Hour has come to take you to the afterlife. The old form of the word is Ora. Yes, Ora.
- Actually, "Ora" is (also) a Japanese word. Depending on context, it has different definitions and translation. In Jojo, it roughly means "Come On!"