We also came across a sign in Javanese, which my mom and I couldn't understand.

I think you can't take photos on the tomb, a prohibition.
Now I understand that "tusetel" was clearly used during old times, as I can remember my grandparents use this word to describe the "modern day camera"

Maybe sometimes when you are back in Bali, you should visit som of the Puri's (Balinese Palace).