Sometimes to be at home is like a nightmare by Stephen King.

He was terrified by the sublime horror of it, for intensity of feeling, carried to this degree, is sublime. ("A Woman's Vengeance")

Maybe this isn't home, nor ever was- maybe home is where I have to go tonight. Home is the place where when you go there, you have to finally face the thing in the dark.

Whatever is fitted in any sort to excite the ideas of pain, and danger, that is to say, whatever is in any sort terrible, or is conversant about terrible objects, or operates in a manner analogous to terror, is a source of the sublime; that is, it is productive of the strongest emotion which the mind is capable of feeling .... When danger or pain press too nearly, they are incapable of giving any delight, and [yet] with certain modifications, they may be, and they are delightful, as we every day experience.

What indeed is the half-life of a mortal consciousness? What is the half-life of a memory of that mortal consciousness? Of course, this is purely an academic question and of no immediate concern to those of us existing in the world of the living, for we possess already a memory, in its stead, which serves as a basis of our perception of the past. Accurate or not, this nature of memory allows us to understand the past according to the positions occupied by the flesh about which we seek to know, but, unfortunately, not in a way relative to the flesh itself__hat flesh stripped of identity and circumstance, that flesh which, in its most rudimentary capacity, had once collided, interacted, fought, competed, negotiated, cooperated, and mated with other flesh: there is no history of this kind, thoroughly naked and telling enough, which is accessible to us, for we are composed of the very same substance, the very same flesh, and sadly incapable of stepping outside of it, even momentarily.

Although terrifying, the evil ghost will probably pose no real danger to you or your family. On the other hand, if you have a demonic infestation, your entire household is in very real danger. A demonic entity will not usually confront you or induce you to flee the home. Because, unlike the evil ghost, the demon does not actually want you to leave. On the contrary, it wants you to stick around so it can destroy your life and sully your soul from the inside.