What I mean is we should work towards always being in a soft zone when we're working or whatever we're doing, so that interruptions or things going ways we didn't expect/hoped for them not to don't create an emotional reaction.

You can start the process by working at not reacting at little things in your day to day life, like someone pulling out in front of you in traffic. If you practice with the little stuff, then the conditioning you give yourself will show when the big stuff comes up.