Spiritual knowledge is a regular science. Just as two and two make four, similarly everything is clean and obvious here also and there is no scope for any kind of modification or change in that.
Sant Kirpal Singh began issuing this series of circular letters as distinct from transcribed discourses, explanatory essays on the teachings after His first world tour in May 1956. These circular letters were unlike His books or His talks, they were letters to every one of His disciples at once, conveying whatever He considered of importance at that time. In this area you will find a selection out of it.