Something no one will really ever truly achieve. No matter how much they hold it in their palms it will eventually slip through the cracks at the slightest feeling of uncertainty. While partial contentment can be sustained for a brief time frame, it is not an enduring sentiment.
John: I feel complete contentment with my life at the moment.
when you're holding up your phone and making faces at it, as though you are taking a selfie, but you're really taking a picture of the person across from you or the wall or anything else that seems interesting but you don't want to be caught dead taking a picture of.
This action is often made more convincing by wiggling the eyebrows or opening the mouth, to pretend you're trying to get a Snapchat filter to work.