I started reading theosophy at age 19 and went on to reading the cream of the theosophical cream soon: There was a Secret Doctrine studygroup in Amsterdam and I went regularly. The book itself is difficult - not many people can read it without some sort of guidance. One of the advantage of having a group to study with is that you get their intuitions on what the book means - as well as their knowledge about the many subjects Blavatsky covers.
Anyhow: what an inspiration that book was.
Many people read it by just opening it somewhere and reading what it says. That's a great way to do it, because the book isn't organized very well anyhow. Just the same it contains many vistas of inspiration and wisdom.
