"There can be fear only where there is duality. How can there be fear for one who experiences non-duality? Such a person is the most courageous of men. The courage of a soldier in the battlefield or of a dacoit is only Tamasic courage. It is not courage at all. It is only brutal ferocity born of hatred or jealousy. That Sattvic courage born of Wisdom of the Self alone is real courage."
January 1, 1970
https://en.wikiquote.org/wiki/Swami_Sivananda