I think the change in perspective could happen if we realize that the small incidents are as important as the great ones in shaping our lives. Some of those incidents have things to give to us, if we observe them, that can positively impact our lives, just like the great incidents.

Like a conversation in the bus, plane or train. Reading at a cafe. Family time spent together. Going to social activities involving loved ones, etc.

Most people are perpetually sad and depressed, because they get caught up awaiting the big incidents that the fun in the small ones passes by, since with all the anticipation, they can barely notice.

On their way to work or school, they are thinking about that business opportunity or scholarship opportunity or one big move they plan to make and thereby miss the fun in small things happening around them.

A day lived experiencing appreciating the small things is more fulfilling and satisfying than a month lived in anticipation of big events. My opinion.