Someone who is a master of religion.

VERB; pure religion, and undefiled before god is this; to visit the fatherless and the widow in their affliction and to keep oneself unspotted from the world; humble charity. This is the definition of religion found in the Bible

verb: an act or act(s) of humble charity, giving to someone in need, selfless acts of kindness.~adapted from the KJV of the Bible.

Is a form of a group of persons that shares the same beliefs

A set of core beliefs that someone believes;
commitment or devotion to religious faith or observance.
There are many religions in the world and many have a common background. The most prevalent religions of the world are; Christianity, Islam, Judaism, Buddhism and Hinduism.

Belief of a higher power. This can range from on god to millions. Monotheism means believing in only one god while Polytheistic is the belief of more than one god. The three largest being Christianity, Islam, and Hinduism.

Examples of religions that believe in more than one god are Hinduism, Buddism, and Shinto. Many religions do things to please their gods, goddesses, by having sacrifices, festivals, gifts, fasting, etc.
Religion is NOT evil. The people who taint religion are known as extremists, these people believe that they are doing whats right but kill many in the process.

So please don't be ignorant and be respectful!

A set of beliefs to explain life's questions. Religion does not mean Christianity, as there are many different religions, and different ways of following each. Contrary to what some think, religion does not cause wars or fighting, as most religions say that fighting is bad. It is, instead, the inability of people to cope with contradicting beliefs.