Sri Aurobindo
Letters of Sri Aurobindo
Volume II - Part 3
Fragment ID: 11920
Pranayam is safe only if one knows how to do it and is on guard against its possible dangers: (1) danger to health by mistakes in the method, (2) rising of the vital forces, especially lust, egoism and wrongly directed strength and force, (3) the awakening of concealed sanskaras of the physical nature or latent karma from past lives.