By learning the mystery of attainment one learns the divine mastery which is suggested in that phrase of the Bible, "Thy will be done on earth as it is in heaven." This phrase is a veil which covers the mystery of attainment. On coming to earth, man, who is the instrument of God, loses connection with that divine power whose instrument he is, thus keeping not only himself but even God from helping His will to be done. When man, who is born to be the instrument of God, does not perform his mission properly he naturally feels dissatisfied. It does not mean that he does not accomplish what he desires, but it is the reason why he is unhappy. This condition is like a hand out of joint: it is not only the hand that suffers, but the person whose hand it is, not being able to use it, suffers also. Therefore in accomplishing the work he undertakes, in attaining to the aim he has in life, man not only helps himself but he also serves God.