A filter has been put in place. All forms of stimuli are assessed before they are given access. This is a point in time when one can get to grips with matters related to sensory experience, much more than what would usually be the case.
Nostalgic sounds and textures that promised illusory rewards are now redundant, for example. Sharing networks with others requires a constant pruning and purging of material that evokes unwanted feelings.
No man is an island. Connection remains important. Economy of gesture in communication becomes a new skill to work on.
What is all this effort in aid of? Making the most of the opportunity to really look in the mirror, hopefully coming to terms with the image one sees.
Internally, one can also get in touch with the detached observer who perceives thoughts and feelings without judgement.