Do not assume certain things are hanging without giving them your effort

This is a word for me and for many

A lot of times, we are too fast to complain but deep down, we haven't given that stuff the most needed effort to see our desired result.

Just like the quote you are talking about, full concentration is needed without losing focus, and without distraction and with extended period. I.doubt we can apply this in whatever we are working on without seeing nice results

Happy new year sam