The moment you see something with your own eyes and feel injustice with all your senses, you cross an inner border, you know you can’t go back from there.
I can 'feel it with my spirit'. And the mind cannot stand this, it fights fiercely against this answer: I can feel it. Because the mind wants an absolute.
With the mind adjusted and placed in a proper environment, directed in right ways, we can do wonders for the greater good.
Observe how your mind, body, heart and soul naturally seek homeostasis and regroup, often giving you insight on what you are.