Does not have a common doctrine like other religions.
The symbol used in Hinduism is called Om.
It is the sacred sound that represents the universe.
yoga
meditation
pilgrimage to holy cities
Ayurveda- The comprehensive system of healing
Hatha yoga- To locate and activate chakras
The first is Ramanuja. He taught that Hindus should worship a personal god, Vishnu.
The second is Lord Swaminarayan. He helped the people in need in Hinduism but also in Islam and Zoroastreanism.
Peace is achieved by making friendships with those who are happy, helping those in need, and joy towards those who are righteous and those who are not.
http://hinduismfacts.org/hindu-symbols/
http://www.religionfacts.com/hinduism
http://hinduismmaiaalex.weebly.com/important-people.html
http://www.hinduwebsite.com/hinduism/significance-of-happiness-in-hinduism.asp
https://youtu.be/lmV2Wd8bOcc