If you are sincere in seeking this knowledge, you must look for a teacher and humbly ask your teacher to show you the opening of the Mysterious Gate. From then on, if your actions follow the Tao, you will progress. If your actions stray from the Tao, your progress will be halted.
Source: commentary on T'ai Shang Ch'ing-ching Ching, written in Six Dynasties Era (220-589 AD), p 19
Contributed by: Zaady