I double up laughing when someone mentions that thing about "personal interest". Maybe we should define, previously, what it means before using the concept so freely.
I think everyone should look for some stability in his life before proceeding to other sorts of things. Tao, magick, esoterism, and so need the subject be stable and settled down. The primary needs of humans are shelter, sleep and food. Once that's attained he must cultivate his mind with the help of books, masters or other people.
That supposes a conceptual structure of layers, from the innermost, which condition the subject, to the outermost, which forms himself.
So, if you need a home, or more money to improve your life's quality, to buy books, to sign up in a course, etc... you can obtain it moving the appropriate energies.
Personal interest? I don't think so.