One morning early, lying in my bed, and filled with thoughts about my danger from the appearances of savages, I found it discomposed me very much; upon which these words of the Scripture came into my thoughts, "Call upon Me in the day of trouble, and I will deliver thee, and thou shalt glorify Me." Upon this, rising cheerfully out of my bed, my heart was not only comforted, but I was guided and encouraged to pray earnestly to God for deliverance: when I had done praying I took up my Bible, and opening it to read, the first words that presented to me were, "Wait on the Lord, and be of good cheer, and He shall strengthen thy heart; wait, I say, on the Lord." It is impossible to express the comfort this gave me.

In answer, I thankfully laid down the book, and was no more sad, at least on that occasion.
In the middle of these cogitations, apprehensions, and reflections, it came into my thoughts one day that all this might be a mere chimera of my own, and that this foot might be the print of my own foot, when I came on shore from my boat: this cheered me up a little, too, and I began to persuade myself it was all a delusion; that it was nothing else but my own foot; and why might I not come that way from the boat, as well as I was going that way to the boat?
Again, I considered also that I could by no means tell for certain where I had trod, and where I had not; and that if, at last, this was only the print of my own foot, I had played the part of those fools who try to make stories of spectres and apparitions, and then are frightened at them more than anybody.
Now I began to take courage, and to peep abroad again, for I had not stirred out of my castle for three days and nights, so that I began to starve for provisions; for I had little or nothing within doors but some barley-cakes and water; then I knew that my goats wanted to be milked too, which usually was my evening diversion: and the poor creatures were in great pain and inconvenience for want of it; and, indeed, it almost spoiled some of them, and almost dried up their milk.

Encouraging myself, therefore, with the belief that this was nothing but the print of one of my own feet, and that I might be truly said to start at my own shadow, I began to go abroad again, and went to my country house to milk my flock: but to see with what fear I went forward, how often I looked behind me, how I was ready every now and then to lay down my basket and run for my life, it would have made any one have thought I was haunted with an evil conscience, or that I had been lately most terribly frightened; and so, indeed, I had.

However, I went down thus two or three days, and having seen nothing, I began to be a little bolder, and to think there was really nothing in it but my own imagination; but I could not persuade myself fully of this till I should go down to the shore again, and see this print of a foot, and measure it by my own, and see if there was any similitude or fitness, that I might be assured it was my own foot: but when I came to the place, first, it appeared evidently to me, that when I laid up my boat I could not possibly be on shore anywhere thereabouts; secondly, when I came to measure the mark with my own foot, I found my foot not so large by a great deal.

Both these things filled my head with new imaginations, and gave me the vapours again to the highest degree, so that I shook with cold like one in an ague; and I went home again, filled with the belief that some man or men had been on shore there; or, in short, that the island was inhabited, and I might be surprised before I was aware; and what course to take for my security I knew not.
Oh, what ridiculous resolutions men take when possessed with fear! It deprives them of the use of those means which reason offers for their relief.