Today Orthodox and Greek Catholics celebrate Holy Trinity Day

Trinity Sunday celebrates the Christian doctrine of the Trinity, the three Persons of God: the Father, the Son, and the Holy Spirit. The Holy Trinity is an important concept in most Christian teachings.

On this day, the most solemn and magnificent church services are performed. The floor in temples is covered with freshly mown grass, and the icons are decorated with tree branches. On the eve, on Saturday, Christians honor the memory of deceased relatives – it is called the Trinity Parents' Saturday. On Monday, the Holy Spirit Day is celebrated. The Trinity color is green as it symbolizes the eternal life and is the color of the Holy Spirit. Temples are decorated with green, and priests wear green.

In Ukraine, the church tradition of celebrating this holiday is tightly intertwined with pre-Christian beliefs. For Ukrainians, the Trinity has long been the most poetic holiday, closely associated with nature, the world of the living and the dead. The holiday is rich in all sorts of rituals, which are different in each region. The Trinity is the final farewell to spring and the approach of summer.