Last week I noted that many temples have a policy that visitors to a wedding take off their shoes.  This week I wanted to ask about a certain part of the endowment ceremony.  While getting ready to dress in the robes of the Aaronic Priesthood, we are asked to remove our shoes and put them on again.  Yet when we switch to the Melchizedek Priesthood robes, we leave our shoes on.  Why do you think there is a difference?  Why do you think we need to take them off?  Is this similar to Moses on holy ground?