The kitten is feeling pleasure: “Oh, my mother is carrying me.”
The deer is feeling death: “Oh, now I’m going to die.”
So, although both devotees and nondevotees die, there is a diffrence of feeling at the time of death.
Every person who has taken birth in this material world is destined to meet death, which is simply a matter of changing bodies, but no one except the Krishna conscious person knows where he will be going after this change of bodies.
Either you are a beggar or a King, Every one has to die. Only devotee of the Lord knows where we go after death.
Those in the bodily concept of life are only dying at every step. They are simply approaching death, “Their Final Destination”.
A devotee knows that even at his death Krishna will protect him. The real test of our devotion will be at that time.
If at the time of death one can remember Krishna, one’s life is successful.
Srimad Bhagavatam 10.1.5-7,
Srila Prabhupada