Hinduism teaches the principles of Security and Conflict Resolution.

Opposite sides of the planning circle address similar issues, and opposite to Hinduism are Christianity and Judaism, which address Creativity and coming up with a plan, and Productivity and Bringing in the People.

Taken from the Wikipedia article on "Diwali"

Diwali (or Deepavali, the "festival of lights") is an ancient Hindu festival celebrated in autumn (northern hemisphere) every year.  Diwali is the biggest and the brightest festival in India. The festival spiritually signifies the victory of light over darkness. The festival preparations and rituals typically extend over a five-day period, but the main festival night of Diwali coincides with the darkest, new moon night of the Hindu Lunisolar month Kartika. In the Gregorian calendar, Diwali falls between mid-October and mid-November.
Before Diwali night, people clean, renovate and decorate their homes and offices. On Diwali night, Hindus dress up in new clothes or their best outfit, light up diyas (lamps and candles) inside and outside their home, participate in family puja (prayers) typically to Lakshmi – the goddess of wealth and prosperity. After puja, fireworks follow,[9] then a family feast including mithai (sweets), and an exchange of gifts between family members and close friends. Diwali also marks a major shopping period in nations where it is celebrated.]
Diwali is an important festival for Hindus. The name of festive days as well as the rituals of Diwali vary significantly among Hindus, based on the region of India. In many parts of India, the festivities start with Dhanteras, followed by Naraka Chaturdasi on second day, Diwali on the third day, Diwali Padva dedicated to wife–husband relationship on the fourth day, and festivities end with Bhau-beej dedicated to sister–brother bond on the fifth day. Dhanteras usually falls eighteen days after Dussehra.

Confidence, Relationships and Security

The confidence you and your community show to outside forces is a strong deterrent from the sense of judgment. 

To protect your family and your city from outside invasion, you must address conflicts that have the capacity to undermine your security. Genocides start with a sense of judgment, and if the people of the city are stable and prosperous, and everyone is functioning based on doing what is in everyone's best interest, there is no place for the judgment that leads to covert and overt actions from outside forces. 

Relationships that may be based on different goals are not strong and will eventually break apart. If a marriage is based on romantic attachments, it opens the family to acts of revenge to undermine the relationships, and there are five power games associated with revenge, including genocides. Brother/sister relationships can break apart, but if based on the same goal, such as a family business, marriages will bring in spouses who are willing to be part of the family, instead of losing the sibling to another family and its business venture. With each individual you bring into your community or family, you multiply your resources.