My Western background left me completely unprepared for this Eastern take on the feast of the gift of the Spirit to the Church. In Western Churches, Pentecost particularly focuses on the “fire” of the Holy Spirit lighting on the disciples in the upper room and the “empowerment” of the Church for mission. Traditionally in the West, the color of the feast is red (for the fire).
In the East, the color of the feast is green ”“ which is also the color worn for the feast days of monastic saints. In the West, green is the “ordinary” color worn in the “in between” Sundays and weekdays of the Calendar. For the Orthodox, gold serves this function.