At Rajbhog arti camphor is usually offered before the normal ghee lamps, anthough i've noticed at the Toronto temple that just a normal ghee lamp with a large wick is used. The New York temple uses a normal gee lamp with a piece of camphor, i'm guessing this is so the camphor doesn't burn too quickly. What standaerd do most temples follow? I'm guessing they don't use real camphor at the toronto temple because the smoke tends to turn everything black and the altar is white, or maybee they're using camphor oil that just looks like a normal ghee lamp. Also is there a specific mantra for offering camphor?