In a particular function, such as a mechanic, a bureaucrat or an engineer, you need the continuity of memory as thought. There you must exercise memory, otherwise you would not be a good engineer, a good scientist and so on. But the continuity of thought with regard to a particular memory, the whole psychological bundle of memories concerning me and mine, and the response to that conditioning as thought, which is time, thinking about death, the ending of the things that one has known, abruptly, suddenly, thinking about it and giving it continuity is to bring about fear. So to really end fear is the ending of thought.