<p>2017 Reprint of 1925 Edition. &nbsp;Full facsimile of the original edition, not reproduced with Optical Recognition software.&nbsp; &nbsp;This early work by Hall is devoted to the study of the ancient Mystery Schools and the work which they have done in the world throughout the various ages.&nbsp; There is also a treatise on the path of discipleship.&nbsp; The reader of this booklet is equipped to discriminate between the various so-called spiritual organizations and is protected against unfortunate involvement.</p>