"Eternal Peace" refers to a state of perpetual tranquility. It is very much possible to attain this state. This can be achieved through practice and being in knowledge also awareness.
It is a state of mind where you are devoid of thoughts of worries, anxiety, regrets etc., a state of eternally happy inside out.
A true happiness is an inside out factor. Nothing can shake your peace.
Secret to "Eternal Peace" are :
1. Be more forgiving: Do not hold on to any hatred, grudge etc. Forgiveness is the best thing to attain peace in life.
2. Meditation: Start meditating. Meditation brings you to present moment and thus helps to be at peace.
3. Let it go: Do not worry or be about your future. Do not brood over your past. Things that you cannot control, let it go.
4. Keep Smiling: Smiling helps us to be in our spirit always. This not only lifts up your mood, this is contagious. This makes others also around you happy.
5. Be loving: Only thing that is constant is love. Love moves the world. Love is eternal.
6. Acceptance: Acceptance is the key to be at peace ever. Start accepting the people and situations around you.
7. Do not judge: You never know what is the other person going through unless you have walked on their path. So keep your judgments at bay.
8 Spend sometime with solitude: Every day, preferably mornings spend sometime with self in stillness. Listen to your soul's voice. This act of talking to soul through silence makes you reflect upon and keeps you 'eternally peaceful'
9. Focus on your goals: instead of focusing on things that doesn't matter much, focus on your goals and achieve them and let your success makes noise, not your mind.
Regular practice of above mentioned commandments in life will definitely keep you eternally at peace. You need not go to Himalayas to seek peace.
-Via Geethapriya