What are the religious implications in the movie Mulan, and how is it applicable to Hinduism, Buddhism, Sikhism, or Jainism?

At the
beginning of the movie, Mulan and her father visit a shrine dedicated to their deceased
ancestors. These ancestors appear as ghosts, with the conditions of their afterlives decided by
the karma that they collected in their previous lives. As such, some are old and ornery, while
others are friendly. Overall, however, these ancestors seem hesitant to bless Mulan on her
pendant quest to join the military in the place of her father. As such, respect for the dead
would qualify as a belief or practice that is applicable to all of these religions, as it would
be impolite to ignore the karmic conditions that her ancestors wrought. Respect for...