A terrible fit of anger shatters the physical nervous system. It produces a lasting impression on the inner astral body. Although the effects of a fit of anger may seem to subside in a short time, the vibration or wave, continues to exist for days in the astral body. A slight unpleasant feeling that lasts in the mind for five minutes, may produce a deep inflammation of the astral body. It may take several weeks or months even for this ulcer to heal.
Now, have you realised the disastrous consequences of anger? Do not be victims of anger. Control it by love, mercy, sympathy, vicara (enquiry) and consideration for others. Even slight annoyance, or irritability, affects the mind and the astral body.
Aspirants should not allow these vrttis (thought-waves) to manifest in the mind-lake, as they may burst out as big waves of anger at any moment, if you are careless or weak. There should not be the least disturbance in the mind-lake it should be perfectly calm and serene. Then only you will find meditation possible.
It is difficult to control anger. Anger is a manifestation of sakti (energy). At first, try to reduce its force. and its frequency of duration. Endeavour to attenuate or thin out this formidable modification of the mind.
Do not allow this modification to assume the form of a big wave on the surface of the conscious mind. Nip it in the bud when it is in the form of irritability. Divert the mind. Entertain divine thoughts. Do vigorous japa (repetition of God's name) and kirtan (chanting). Repeat some prayers or slokas (verses) from the scriptures.
Develop the opposite, divine qualities. Develop patience, love, forgiveness - anger will die by itself, gradually. Blessed are those high-souled people who can control their anger by pure, strong will and intellect.
Be serene. Serenity is like a rock. Waves may dash on it but they cannot affect it. Waves of irritation may break on this rock of serenity but they cannot affect it. Meditate daily on the ever-tranquil atman (self). You will attain this sublime virtue of serenity gradually.