In the Scripture we have some Light into it, and that is all the Help I find from Antiquity, and it goes a great Way to solve the Phaenomena of Satan's appearing; what I mean by the Scripture giving some Light to it, is this; 'tis said in several Places, and of several Persons, God came to them in a Dream, _Gen._ xx. 3. _God came to_ Abimelech _in a Dream by Night_, Gen. xxxi. 24. _And God came to_ Laban _the_ Syrian _in a Dream_, Matt. ii. 13. _The Angel of the Lord appear'd to_ Joseph _in a Dream_; short Comments are sufficient to plain Texts, applying this to my Friend when he wanted to be satisfied about the How, relating to his Dream (_viz._) how he should come to Dream such wicked Things? I told him, in short, the Case was plain, _the Devil came to him in a Dream by Night_: How and in what manner he form'd the wicked Representations, and spread debauch'd Appearances before his Fancy, by real Whispers and Voice, according to _Milton_, or by what other Methods, the Learned are not arriv'd to any Certainty about it. This leads me necessarily to enquire whether the _Devil_ or some of his Agents are not always in our Company, whether they make any visible Appearances or no? For my Part I make no Question of it, how else could he come at the Knowledge of what we do; for as I can allow him no Prescience at all, as for many Reasons I have observ'd already, he must be able to see and know us, and what we are about when we know nothing of him, or else he could know nothing of us and our Affairs, which yet we find otherwise; and this gives him infinite Advantage to Influence our Actions, to judge of our Inclinations, and to bring our Passions to clash with our Reason, as they often do, and get the better of it too. All this he obtains by his being able to walk about invisible, and see when he is not seen, of which I have spoken already; hence that most wise and solid Suggestion, that when the Candles burn blue the _Devil_ is in the Room, which great Secret in Nature, that you may more fully be convinc'd of its imaginary Reality, I must tell you the following Story which I saw in a Letter directed to a particular Friend, take it Word for Word as in the Letter; because I do not make my self accountable for the Facts, but take them _ad referendum_. SIR, We had one Day, very early in the Morning, and for the most Part of the Day a great deal of Rain with a high Wind, and the Clouds very thick and dark all Day.