Study Hinduism my friend. This is a religion that not only allows you to embrace your current religion, (if you are a christian, muslim, buddhist, etc), but open your mind to the rest of the world too. The only drawback is that Hinduism does not have a centralized book of reference as with Christianity and the Bible. The writings for Hinduism are MANY, and are very decentralized. The writings and interpretations of Shankaracharya may be a good place to start, depending on how interested you are in the subject. The Bhagavad Gita is also another suggested starting point.
The Robert Redford movie "Legend of Bagger Vance" was based on the Bhagavad Gita. The B. Gita is a story of Arjun, who is on his way to war. He laments at having to kill. He questions a God name Krishna, and the book, (which in Sanskrit, is a song, as "Gita" means devotional song), the book is a basic dialogue between Krishna and Arjun over the concept of Dharma, which roughly translates to one's 'duty' in life. Very complicated to try and explain to you, but if you do get a chance to get acquainted with the main ideas of Hinduism, (apart from the caste system, which was and is institutionalized race and classism), I feel that you may look at life in a much more positive manner.
Also, I found a lot of guidance from the book of the Tao Te Ching by Stephen Mitchell. This is a translation of writings by a man by the name of Lao-Tzu, a "contemporary of Confucius". Of course, reading the book on your own may not be as beneficial if not discussed with others reading this (like a classroom setting), but is definitely what helped shape my outlook on the world immensely. Hope that helps.