Although nearly everyone celebrates Halloween for the fun of the secular holiday, the following religious solemnity, is not widely practiced or acknowledged by most Americans unless they are Catholic.In other countries, such as Portugal, Spain and Mexico, traditional practices include performance of the play, "Don Juan Tenorio" and offerings made to the dead.
The holy day was eventually established on November 1 by Pope Gregory III in the mid-eighth century as a day dedicated to the saints and their relics. In Ireland, the Church celebrated All Saints' Day on April 20, to avoid associating the day with the traditional harvest festivals and pagan feasts associated with Samhain, celebrated at the same time.
All Saints' Day was formally started by Pope Boniface IV, who consecrated the Pantheon at Rome to the Virgin Mary and all the Martyrs on May 13 in 609 AD.
Boniface IV also established All Souls' Day, which follows All Saints.
In Mexico, the Day of the Dead holy days extend from October 31 through November 2.
It is important to remember these basic facts: Halloween is a secular holiday that comes the night before All Saints' Day.
In Western Christian theology, the day commemorates all those who have attained the beatific vision in Heaven.