So follow this: I want certainty of tomorrow, and certainty can only exist where there is knowledge, when I say, “I know”. Can I know anything except the past? The moment I say “I know” it is already the past. When I say “I know my wife”, I know her in terms of the past. In the past there is certainty and in the future there is uncertainty. So I want to draw the future into the past so that I will be completely safe. I see fear arises where thought is operating; if I did not think about tomorrow there would be no fear.