Bali, Indonesia (02)

What exactly those black spots and lines represent, im not sure...thats how the card arrived in my mailbox..at first i thought it may be dirt...but when i did a closer inspection on both sides, i might think as well its from the stamp marks...and the card which was over this one, its cancellation somewhat left traces on my card as well...since the cancellation on my own is as well somewhat smeared...

The card shows the temple "Tahan Lot", which is one of the sacred temples of the Hindu people in Bali.
Unfortunately, i couldnt really find much info about it...i always end up on sites with photos about it...no relevant information...or maybe im again just lazy to google more for it...shame on me :(