Mastery over Nature's Powers through Pranayama
The human body is the copy of the cosmic structure in miniature and Prana enlivens and animates the organism. Each element has gone into its constitution. The key force behind all forces of nature is Prana. Prana is the manifest essence of all the forces that exist. The cerebrospinal system forms man's subtle switchboard. The different subtle psychic centres dominate particular elements of forces in nature. By gaining mastery over the vital astral centres located therein, man obtains control over every force of nature.