In the line above lies a simple truth all of us need to be aware of: we are all biased.
And that bias comes from our own thoughts.
It is our own minds that are responsible for creating “stories in our heads” — the thoughts that add spices to events that are basically neutral; the thoughts that give rise to certain emotions.
So emotion is the result of the narative we ourself “craft” in our own minds. It is our own responsibility.
Having said that, whenever you see something, it’s important to be aware that what you think you see in your mind is merely a perspective. Your own perspective, so to speak, and that perspective is not the truth itself.
That is something Stoicism teaches us.
It’s about mindful about what things really are and what things look like in our mind, and stick to the truth.