If we can learn to always accept this moment as it is and not dwell on the past or the future then we can be at peace within.
The moment we look back to see what could have been different or look forward to see what might happen because of what occurred, is the moment that we become trapped in our mind and deny what is. Futile and only causes us suffering within.
Opinions based on a concept are very different to opinions based on an actual experience.
Of course, opinions are just opinions and simply that, no one more valid than the other, no one more right than the other, it is only our ego that makes our view right and the other’s wrong.
However, if you have an opinion about something you have never seen, done, tasted, smelt, or experienced it is different to those who have experienced those things and that doesn’t make them right but it is worth listening to them. Opinions are about the past or the future, where experiences happen now.
The best thing ultimately is to find out for ourselves by experiencing them too, and then we can make our own evaluation. Until something is experienced then it is always just a mental concept and we can only ever experience anything now, in this present moment. If we concentrate on experiences now, our real life and this moment, then we have a lot less need for opinions of others or to form our own. There is no need to speculate or worry about this or that, we can just be alive and create experiences.