Sunday of All Saints is a week after Sunday of Pentecost. But, why is a series of important Saints being celebrated on that day?
The rationale behind this joint feast is the founding of the Church after the resurrection of Christ followed by the descent of the Holy Spirit. This brought to the world the possibility of man’s union with God. Thus, the Church decided that. All the Saints throughout time should be celebrated in a common feast on the Sunday immediately after the feasts of Pentecost and Monday of the Holy Spirit.