Oh Asok, you're being a bit slow today. What PHB is saying is that the *secret* to success is *making*, followed by four blocks of 4 characters - It's obviously a hidden code. There's probably a bit of padding and abbreviation too, so discarding a few letters we get:
[If] you [have] B.O. [then to the] loo go. (loo = restroom for our American cousins).