St Stephen's Garden - Pentecos 

The display in front of our church is decorated to reflect the season of Trinity

Trinity Sunday (7th May this year) is celebrated a week after Pentecost.  It differs from the other major landmarks in the Christian year in that it celebrates a theological concept rather than relating to an event in the life of Jesus and his disciples. 
The doctrine of the Trinity means that God in Christian belief is manifest in three forms: God the Father – the creator God; God the Son – God as he took on human form in the person of Jesus Christ; and God the Holy Spirit – that aspect of God which can fill us to strengthen, inspire and transform us.  It was this aspect of God which was revealed in the events we celebrated a week ago at Pentecost.   It is appropriate that the Holy Trinity is celebrated straight after this final revelation. 
As Christians we affirm our belief in the Trinity every time we say the Creed (our statement of belief) during Communion and at other services.  It is something we rather take for granted now but over which the early Church fathers struggled long and hard as they worked to codify the fundamentals of Christine doctrine.   It also led to considerable misunderstanding (and indeed still does) by people who are not Christians and who think Christians worship more than one God – they do not!
The Trinity is perhaps more easily understood visually than verbally.  Christian teachers over the years have used various graphic images to get across the concept of one God in three persons.  Perhaps most famous of these images is St Patrick’s use of the shamrock leaf (rather like a clover leaf) to convey the concept of the Trinity to those he converted in Ireland.  Each leaf is made up of three distinct parts but each part is nevertheless an integral part of the one whole.
There are just two additions to the garden to symbolise Trinity.  Adopting St Patrick’s imagery there are some plants in a pot with leaves which are in three segments.   Also you will see an ornament of three small figures linking hands and dancing.  The Trinity is sometimes represented in this way.