Zooming out, what the empirical research shows is that meditation – in its different forms – may have some positive effects on a person’s morality while also potentially producing some negative side-effects. But there is no data on how experienced meditators with many years of practice act in moral situations, so it remains unclear what the long-term effects of these practices could be.
We can still make some inferences about how meditation’s moral influence might play out in everyday life. For instance, you can imagine that if you are given mindfulness mediation training to be ‘non-judgmental’ and ‘non-reactive’ towards the various thoughts or feelings you have, it could help you avoid snapping angrily at your friend if they are annoying you. At the same time, being non-reactive to your own feelings of guilt after you’ve lied to that friend might be a less helpful byproduct.
https://psyche.co/ideas/heres-what-to-know-about-using-meditation-to-be-a-better-person
Know Thyself 