When approaching a subject matter like the one to be discussed here, it seems appropriate to begin with a few personal words about the background of the author. So the reader should know that I am on the one hand a philosopher working in the fields of Epistemology, Philosophy of Language, and Philosophy of Science. Therefore, I cannot help but use my critical and (at times) skeptical mind when I approach the topic of Mysticism. On the other hand I have by now been practicing Buddhist meditation for about 25 years, with constant sympathy, and I have never seen any tension between these two activities, the critical and the practical. They can live peacefully next to each other.