Orson Pratt's dream of the straight and narrow path

Orson Pratt describes a dream he had shortly after joining the Church where he climbed a high mountain, encountered a high wall, and through three attempts, reached the top. He then flew over the cities of the east with a trumpet that he believed was the 'Gospel trumpet'. He notes that his missions to the east were a fulfillment of this dream.

Fuller account of this event (in the witness’s own words):

Here let me relate a dream I had soon after I first came into the Church. I dreamt I was walking on a straight and narrow path, up the side of a high mountain. When I came to the summit, I found a very high wall before me, and thought, How shall I reach the top of it? I made an attempt to fly upon it, but reached about one-third of the way up. I then made a second attempt, and reached about two-thirds of the way. In my third attempt I reached the top, from which I could see the cities of the east. I was to fly over them, and when I began to fly, I had given to me a trumpet, which I thought was the Gospel trumpet. The missions which I have filled have all been a fulfilment of that dream, having been eastward.