All Saints Day on the 1st of November is to celebrate all the people in heaven who do not have a specific day of their own. It is followed, on the 2nd of November each year, by All Souls Day, when we...
All Saints' day was instituted to honour all saints, including those who have not been canonized. All Souls' Day was instituted for the souls in purgatory. The Mass on that day is offered for them.