Animals dont have the ability to understand the concept of time and its three distinct parts past,present and future.We are Human Beings not animals we do tend to impose human qualities/emotions on animals especialy pets.Peace and fear can only be experienced in the present moment and like everything it is a choice of the individual.Peace isnt a luxury it is as it is and is always found in the present.Fear is to worry about the future which cant be changed or delt with in the present.This is foolish and a waste of mental energy which leads to stress and dis-ease.