So, sometimes people want to have a little picture of a very special person or thing called a saint, and they put it on a small card. This special card is called a holy card. Some people like to have holy cards as a reminder of their favorite saint, or they might even say a special prayer when they look at the card. It's kind of like having a little reminder of someone you really love and respect, like a family member or friend. Holy cards are like a way to remember and honor special people who are important to us.