If we ourselves remain angry and then sing world peace, it has little meaning. First, our individual self must learn peace.
This we can practice. Then we can teach the rest of the world.
People seem to fight about things very unsuitable for fighting. They make a frightful noise in support of very quiet things. They knock each other about in the name of very fragile things.
God is the one goal of all our passions and emotions. If you want to be angry, be angry with Him. Chide your Beloved, chide your Friend. Whom else can you safely chide? Mortal man will not patiently put up with your anger; there will be a reaction. If you are angry with me I am sure quickly to react, because I cannot patiently put up with your anger. Say unto the Beloved, "Why do You not come to me; why do You leave me thus alone?" Where is there any enjoyment but in Him? What enjoyment can there be in little clods of earth?
It is not lust alone that one should be afraid of in the life of the world. There is also anger. Anger arises when obstacles are placed in the way of desire.
With everything we do in life we identify ourselves. Here is a man who says harsh words to me. I feel anger coming on me. In a few seconds anger and I are one, and then comes misery. Attach yourselves to the Lord and to nothing else, because everything else is unreal. Attachment to the unreal will bring misery. There is only one Existence that is real, only one Life in which there is neither object nor [subject].
I could not for my soul distinguish ever the distinction between "religious anger" and "commonplace anger", "religious killing" and "commonplace killing", "religious slandering and irreligious", and so forth.
To seek to extinguish anger utterly is but a bravery of the Stoics. We have better oracles: 'Be angry, but sin not.' 'Let not the sun go down upon your wrath.'
Do you recall the story of the young Yogi in the Mahâbhârata who prided himself on his psychic powers by burning the bodies of a crow and crane by his intense will, produced by anger?
Evil company is always to be shunned; because it leads to lust and anger, illusion, forgetfulness of the goal, destruction of the will (lack of perseverance), and destruction of everything. (Narada Bhakti Sutra)
Be advised; Heat not a furnace for your foe so hot That it do singe yourself: we may outrun, By violent swiftness, that which we run at, And lose by over-running. Know you not, The fire that mounts the liquor til run o'er, In seeming to augment it wastes it?