Burning in the Bosom vs Assurance of Salvation

Is the "assurance of salvation" by the witness of the Holy Spirit really any different from the "burning in the bosom" in Mormonism?

QUESTION: When you say “assurance of the Holy Spirit” do you mean something different than the assurance that Mormons experience in their belief in Mormonism?

DR. CRAIG: What I said was the assurance of salvation, and this is a very common Christian experience – that persons who have come to know Christ and experienced his life-changing power have an assurance deep down that their sins are forgiven, that they have eternal life, that they are “saved,” and going to be with God in heaven for eternity. That doesn't mean they don't have doubts, but they do have this deep-seated fundamental assurance. I think that that is borne by the witness of the Holy Spirit to you. Now certainly Mormons will speak of something similar – a burning in the bosom when the Book of Mormon is read – but I would say that whereas we do not have defeaters for the witness of the Holy Spirit in the New Testament sense, we have overwhelming defeaters for the truth of Mormon belief. Anyone who is interested in that just read a book on Mormonism, its history and doctrine and Joseph Smith. I think that there's just no chance that Mormonism could be true. Therefore, it follows that this emotional experience of the burning in the bosom is not of a veridical experience; it has defeaters. Remember what we said a moment ago, that the way something seems to you can justify you in believing it if there are no defeaters of that seeming. And so in the case of Mormonism, and I would say Islam as well, there are very powerful defeaters, but I don't think there are in the case of the witness of the Holy Spirit.