I believe that the most important aspect of taking responsibility, especially for the bad things that have happened, is the possibility of self-analysis and changing the path that led to those bad things. If we blame others, we will never be whole beings and masters of ourselves.

But of course... taking responsibility means putting your ego aside, and not everyone is willing to do that.

I am responsible for every thought that in turn generates things in material life, consequences, and whatever happens comes from me and the solution comes from me, from no one else.