Dreams are said to be highly personal & symbolic. With that said…, if you could do some type of divination, in this case a tarot spread could potentially uncover underlying energies that are at the root cause of your experience you just described here above.
Other than that…, I can refer you to the basics. Cleansing, protection, shielding, warding.
Also you could check my comment I made early today in another thread, It might contain interesting information for you. If the root causation of you dream is spiritual based.
Good luck 