Your home should be your sanctuary and when you dreamed of your house keys, it means you desire to return to your place of safety and inner sanctuary.
If you were dreaming of a bunch of keys that are unfamiliar to you, it can mean you will face new responsibilities. Perhaps you will be given new tasks at work. Or maybe you’re facing new chores at home, or in other environments. Keys represent responsibilities and with them, a degree of hardship in assuming the new load of responsibilities.