靈性的知識是一種有系統規則的科學，就像二加二等於四一樣，同樣的，這裡的一切也都是清晰明朗的，任何型態的修改、變更都沒有一點介入的餘地。
聖基爾帕辛
The crown of life
This book presents a comprehensive study of the major system of yoga, and contains a chapter on Surat Shabd Yoga. It is a pioneering work on comparative yoga.
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