I'm sure the pig will be reborn in the higher realms soon, which
would have been very difficult had it not had this opportunity to
make merits (it is very difficult for animals to make merits).
Maybe yesterlife, the old lady has save the pig's life.
Now, the pig return the old lady a favour.
Heard that the pig already pass away due to heart attack
(everyday eat sweet from pple). Maybe another few rounds of reborn
pigs....enough good karma and will reborn as a human>