After these things I saw," signifies the understanding enlightened and, behold, a door opened in heaven," signifies the arcana of heaven revealed; "and the first voice which I heard" signifies revelation now of things to come; "as it were of a trumpet speaking with me," signifies what is clear and manifest; "saying, Come up hither," signifies elevation of mind, and attention: "and I will show thee things which must come to pass hereafter," signifies instruction concerning those things that will exist in the last time of the church.