For one hour, monitor every thought. Any fearful thought, replace immediately with an affirmation of courage. Extend to three hours, then half a day. This rewires neural patterns.
The essay emphasizes that fearlessness is not the absence of danger, but the presence of spiritual power. Yogananda outlines several scientific methods to cultivate this state: Living Fearlessly - Yogoda Satsanga Society of India
Yogananda taught that spiritual vibrations are attached to the source. Reading a pirated PDF—stolen from the non-profit organization that preserves his work—dilutes the energetic impact of the teachings. It is better to access the text with reverence than to steal it with anxiety.