You don't really want to go to that Christmas party where you will eat what you don't need to eat, drink what you don't need to drink, and dissipate your inwardness in pointless chit-chat. But you were invited and your non-attendance may be taken amiss. So you remind yourself that self-denial is good and that it is useful from time to time to practice the art of donning and wearing the mask of a 'regular guy.'
For the step into the social is by dissimulation. Necessary to the art of life is knowing how to negotiate the social world and pass yourself off under various guises and disguises.