It doesn't even matter if they actually are doing anything to you or not. Just the mere perception of them as your enemy is enough to force your mind to see ITSELF as THEIR enemy, and therefore a victim of whatever they are doing.
This happens instantaneously as soon as you are tempted to see someone else as being separate, different, worse, more guilty or more at fault than yourself.
So what this means is, by choosing to see someone as an enemy, you automatically make yourself an enemy.
Enemies experience threat and danger. Enemies fear attack. Enemies see themselves as victims. Enemies are driven to become victimizers to then try to defend themselves against that perceived attack.
But who is it that chose to see the other person as an enemy in the first place? You.
So not only did you set yourself to be the opponent of this person or group of people, by choosing to see them as your enemy, but you also set yourself up in a victim role.
Being in a victim role you MUST experience fear, anger, upset, and all manner of negative feelings and perceptions.
You might then think that these feelings are being 'caused by' the enemy. In a way they are, in that IF that person is an enemy and IF you believe they are, it would seem that you think they can and are doing something to you. But, the truth is, that it was YOUR choice to see them as your enemy that simultaneously set you up in a split-mind perception, where you are also their enemy, and therefore you are under attack.
This leads to the ultimate truth.... that you have in fact attacked yourself by attacking the other person. There is no escaping this. Either you are both innocent, or you are both enemies. Either you are both on the same side, or you are opposed to each other. It works both ways. And quite literally, everything you perceive them as capable of doing TO you, YOU are doing to yourself. It's you that is choosing to be in opposition to them, and to yourself, and it's you who has now perceived yourself in the role of victim in relation to the distorted figure you see in them.
So you can be upset about other people if you want to. But it is a *GUARANTEE* that you will victimize yourself. And that also means, if you choose not to see other people as enemies, you will set yourself AND them free.
Those who have no enemies have no fear, no anger, no hate, no danger, and no need to react. Ultimately because you are choosing to be a victim in EVERY victim situation, you are your ONLY victimizer. Once you realize this and stop victimizing yourself, recognizign the total futility of 'doing this to yourself', you will be set free. Free from your own tyrrany.