Don't think for a second that this gives you permission to stop rising and grinding, to put yourself on another level. This regret is aimed at those who spend so much of their lives on a treadmill of a work existence that they hate, and yet sacrifice building relationships because of it. Bronnie Ware's memoirs highlighted men and women of an older generation who slaved all day for pennies and missed out on everything else that they ultimately thought was more important.
Many of us get caught up in a routine of work which is a result of other peoples' expectations and sometimes as a behaviour to avoid becoming uncomfortable. For most people work becomes their identity, and instead of allowing them to live it actually diminishes their quality of life.
People have this thought process that they will live forever, which is why they take things for granted. We don't speak to people or see them for a long time because we always think "ah don't worry I'll catch them tomorrow/next week/next month". Well the fact is we don't live forever, and death is right round the corner for every one of us.
Grind hard, but love what you do and continue to build relationships which can improve you and others' lives.
'If you love what you do you'll never work a day in your life'