Dear Master Lee,My family is suppose to change our Ancestor this sunday, we were told to place 2 coins, one facing up and the other facing down, at the bottom of the urn before replacing the joss ashes. It was also mentioned at one of your tread. v>But when we buy our new Prayer urn, the shop owner told us not to place the chinese coins at the bottom of the urn, saying it's an old tradition and will bury our wealth.? div>I would like to know the rational of placing the coins at the bottom of the Prayer urn, and should we go ahead with the coins? v>I'll be grateful for the explanation as soon as possible, as the clock is ticking for us.? Thank you very much! v>Regards