Whilst the greatest effort has been made to ensure the quality of this text, due to the historical nature of this content, in some rare cases there may be minor issues with legibility. The philosophy of the Upanishads was nothing if not practical; and the same has been said by every great religion of its own teaching. Do the will and ye shall know of the doctrine. It is not sufficient to study and investigate the art of Creation as an external problem; we have to learn and to practise the art in ourselves. So alone will it become vital and really intelligible to us.