Solving a crossword puzzle is also a very challenging task that hones intellectual acuity. If nothing else, you'll build up a huge vocabulary as a crossword puzzle solver. This past weekend, Will Shortz, the writer of the NY Times puzzle said that he has volunteer checkers that can solve the Sunday Times crossword in about 20 minutes. For anyone that's evert tried solving the Sunday crossword, that seems like an incredible and powerful feat to be able to vanquish the puzzle in such a short time. Solving the puzzle is a discipline, but that skill is backed by a huge mastery of philosophy, science, sports, math, history, culture, etc. In essence such a master would have to be the incarnation of a true renaissance individual with knowledge in every field. What being a crossword master won't get you is a job. ... except for maybe being a puzzle writer, but there aren't any vacancies in that field right now.
Similarly, mastering the RSE great work won't make you anything more than a master of the great work. Know any vacancies looking to hire a card reader or an individual really good at C+E? I didn't think so. If you are lucky, the RSE disciplines will help show you the value of the benefits of concentration, sacrifice, diligence, creativity and patience have in manifesting what you need. The RSE disciplines aren't what you really need become a master, but rather a metaphor to show you how to develop those other skills and traits you do require. You can think about all sorts of wonderful things you want the universe to bring to you all day long, but it ain't gonna happen until you put out some effort to make it so. A case in point is that it is totally impossible to win the lottery until you at the very least go buy a ticket; you can think about it all you want. You'll just have to face the music that becoming a true master takes dedication and time. There is no shortcut.
By the way, the answer is 42.