If earthly substances act so diversely on different people, then how much more varied is the reaction on them of the highest energies! Long ago people understood that for the proper reception of these rays it is needful to bring the organism into a harmonious condition. For this purpose the Wise Ones have indicated the power of sacred invocations. Aum, or phonetically Om, was such a synthesis of sonant strivings. Prayer and inward concentration are excellent attainments which render healthful the state of the spirit. (Aum (opens in new tab), 4)