If you belong to a group that allows a great deal of freedom your ritual must allow room for individuals to express or hold to their beliefs. If you belong to a group that does not allow much freedom, your ritual should be very specific and spell out exactly what your group believes. The various Christian communion rituals are good examples of this. The second most common goal of a ritual is spiritual fulfillment. This is not an easy goal to achieve because people receive spiritual fulfillment in many different ways.
Some people get it from music or poetry.
Some need a moment of silence or prayer. Your rituals should include different elements and be varied enough to satisfy everyone's needs. Just remember that you can not please everyone all of the time. A common goal is to receive or ask for a blessing. When there is a specific need the ritual should emphasize that need and more effort should be expended to meet it.