Prabhupada gives the example of the mother cat. When she opens up her mouth to the kitten, the kitten thinks, “She is my mother and is coming to take me home.” However, when the cat opens her mouth and shows her fierce teeth to the rat, the rat sees it from a different perspective. They are the same teeth, mouth, and cat, and both the kitten and the rat are seeing the same thing. Yet the rat is thinking, “This is the termination of all of my plans.” Therefore, when a devotee has taken shelter of the Supreme Lord, he actually comes to this platform of fearlessness. For him, death is no longer a cause of fear. Death is simply a change of dress.
LFD Vol 3,Fearlessness of the Devotee Pg 126, 4th paragraph