Your cards include the cards in your hand as well as your displayed cards, discards, bury pile, recovery pile, and deck. You can look through your displayed cards, your discards, your bury pile, and your recovery pile at any time. You may not look through your deck unless a card specifically allows it. Don’t shuffle any stack of cards unless you’re instructed to. A deck is a deck, a hand is a hand, and a pile is a pile whether or not it has cards.