One of the first rules to remember, not just for the big temples, but also your home temple, is to never set foot inside with footwear. Sandals, slippers, shoes, anything that prevents your feet from touching the ground should be left outside. Temples are considered pure and sacred spaces, and stepping inside with shoes is disrespectful. Plus, as going to the temple is a grounding experience, it is best to touch the sacred ground and be one with God, aligning the energies.