Everything to be found on earth, such as gold and silver, gems and jewels, is all for mankind. And all that gives happiness such as power, intelligence, harmony, peace, inspiration, ecstasy, joy, also belongs to man. Man can make a heavenly experience his treasure, just as well as an earthly possession. It is not necessary for man to leave all the things of the world and go into retreat. He can attend to his business, to his profession, to his duties in life and yet at the same time develop this spirit in himself which is the spirit of mastery. The spirit of mastery is like a spark: by blowing continually upon it it will grow into a blaze, and out of it a flame will rise.