Why do we practise these ordinances?

What is the meaning of being baptized in water? Is it a relevant ceremony for today's church? Is it being done in such a way as to emphasize a passing from an old way of living into something new? How could the meaning and value of water baptism be clarified and emphasized in our churches? And, what about the celebration of communion or the Last Supper... Is that a meaningful, spiritual experience for most church attenders? What is its meaning and relevance in our culture? How could it be improved or enhanced to become what Jesus intended it to be? Do you have any creative suggestions for how we might improve the impact of either of these ceremonies upon those of us who follow Jesus and those who are seekers of truth?