Consider, there are literally tens of thousands of Jewish books, but there isn’t a single spiritual structure that one can use as a mechanism to say “this is exactly how I need to behave” – true the Tanya has the answers to all questions, but it seems that every time you study it, more answers arrive! – for that is the great secret to Judaism, that as you are infinite, as God is infinite, as God’s wisdom is infinite, if you think you have perfected your spiritual journey, you have actually stopped it!