In religious rituals, the sound of the organ music, the lighting of
candles, and the invocations of the celebrant are subconscious triggers
that tell your brain that something special is going on. Those triggers
are imbued with sacred meanings that are supposed to cause your mind to
focus and set aside unimportant thoughts. That initial dispatch should be
the same thing. That should be the trigger that shuts off your thoughts
about the fight you had with your spouse, about how your kid is doing in
school, and even worrying about your parent who is dying in a hospital
bed. You can come back to those thoughts later. They are important, but
they are completely irrelevant right now. Why? We have a sacred duty to
protect society. You must be 100% in the moment to fulfill that duty. The
initial dispatch should trigger your mind to focus on the task at hand.
Learning to do this can be challenging, of course. We all get consumed in
our thoughts. Learning to flip a switch to shut out those other concerns
will come only with practice. Christopher Brennan, The Combat Position:
Achieving Firefighter Readiness
http://tipyomi-sender.appspot.com/showtip/Sheepdog%20Tip%20of%20the%20Day/Before%20Combat/179