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.
"I have written books without any copyright – no rights reserved – because it is a Gift of God,
given by God, as much as sunlight; other gifts of God are also free."
From a talk by Kirpal Singh at Santa Clara University, San Jose, California on November 16, 1972
The books of Sant Kirpal Singh are available here for free download.