This wheel is sometimes called the Gardnerian Wheel because it is a combination of two ancient wheels (acknowledgements to Kenny Klein). The hunting wheel, the oldest, has two God births: The Oak King is born at midsummer and rules through to Yule when he dies and the Holly King is born. The agricultural wheel has the young God born at Ostara, symbolic of the sun/son rising in the East. He dies in the second harvest, Mabon, which means 'the young Lord'.
In the different traditions these holidays (holy days) may have different names, for example Imbolc is called the festival of light in the northern tradition.
Western Pagans have no fixed temples in which to worship but instead (usually) make a circle around all the celebrants (or the celebrants themselves form a circle) in a room or in a clearing or on a beach or find a naturally ocurring circle such as a grove or use one of the ancient stone circles. Pagans have no hierarchy like the established religions so Pagans are free to follow whatever spiritual path they choose.
Pagans like to celebrate more rites of passage than the prevailing culture. Most people see two rites of passage: coming of age (18 or 21) and marriage. Christians also get a first one, the Christening, though the subject is unable to experience it.
The Pagan equivalent of a Christening is a Naming ceremony. Other rites of passage may include Child - celebrating change from baby to child, Puberty and so on. Marriage is called hand-fasting and this may be arranged for eternity or just for a year-and-a-day, renewable. The latter is a great stabilizer against casual relationships and divorces, providing some level of commitment yet recognizing that some relationships will not last.
