For slow breathing a place and time you could use it would be when you are meditating and trying to calm yourself when you are overwhelmed, when you wake up in the morning and look at yourself in the mirror you can point out all of the positive things about yourself that you love.
The sentence "Moreover, it is probably just as valuable or more valuable to us now, than it was in the ancient past".
There is no description so I am not sure, however I believe it is C. Cytoplasm