Some aspects of FF games have names of deities or other such religous things.
I just looked up Shiva, and she's One of the principal Hindu deities, worshiped as the destroyer and restorer of worlds and in numerous other forms. Shiva is often conceived as a member of the triad also including Brahma and Vishnu.
Shiva is also (Judaism) a period of seven days of mourning after the death of close relative.

I'm sure there's a lot more, but I was looking up Shiva because I remembered hearing about her before in the movie "Bubble Boy" (the newer one).