When the doorbell rings and nobody is there, or you are the only person who hears the doorbell ring it means that spirits are asking to enter your life. The reason they come this way is because the ancestors are protecting you and it is your decision to allow spirits into your life even if they are benevolent in nature. When this happens, open the door to allow them inside if you want them, or wait ten minutes or so before opening the door to refuse. The entities that knock on your door are likely to be benevolent because otherwise they would attempt to sneak into windows or they would not be upfront about their desire to enter your life, let alone having guardians and ancestors allowing them to come through.

If you suspect evil spirits trying to get into your house, do protection work or rituals to empower the guardian deities you have attached to you. You can also call upon the god of nature or the spirits of your house, the forest, or whatever nature you have around to do a vetting of anything that wants to come into your life. You also want to meditate and use your powers to create a force field around your body so evil spirits cannot attack you. Force fields also protect you from magic weapons used by the government and the CIA against magicians as well as other evil magicians who may be attacking you with curses and evil spells.