In general, an
initiation is a ceremony in which a person is bestowed with new powers,
abilities, and responsibilities.
There are two main ceremonies of religious initiation in the
Hindu religion.
The upanayana samskara, also known as the "second
birth," is a teenage religious initiation performed on a
"twice-born" male—that is, a member of the brahmin, kshatriya, or
vaishya group.
The second form of initiation, diksha, is bestowed on a person at the discretion of a guru or religious preceptor and has no restrictions on who may get it or when.
You may also want to read more about Hinduism here.
Be sure to check out my writings on religion here.
