The word mysticism serves to draw attention to certain similarities in religious experience in both Western and Eastern religion, and it is difficult to find a really satisfactory substitute. What is important is that we should not suppose it to be a simple term, but should recognise that it has many variations. There are varieties of mysticism, recognisable by a certain family resemblance, and it is probably safer therefore to use the word with some qualifying adjective, e.g. Christian mysticism, Jewish mysticism, and so on.
