Originally Posted by White Peony
If St. John the Baptist was the forerunner for the first coming of Christ, is Mary the forerunner for the second coming of Christ?
well, not really -- at least, not in the way that I think you mean it.
John the Baptist was the forerunner for Christ because of the prophecy that Elijah would come in advance of the Messiah; Jesus identified that John 'was' the Elijah as prophesied.
Mary, however, was not prophesized to be a 'forerunner' in this way. However, Mary does
always point toward Jesus, so inasmuch as her presence points us toward Him, and given that we're waiting in anticipation for the parousia, then in a certain sense you can make this claim of "Mary as forerunner", but it would only be in analogy.
Moreover, John was part of the public revelation of God; since public revelation is closed, we now only have private revelation. Even if the Church verifies that a particular private revelation seems on the up-and-up, it is not necessary to believe in that private revelation for salvation. Therefore, any instance of an appearance of Mary wouldn't be seen as being a "forerunner" in the way that public revelation is.
Does that make sense? Hope it helped...