This upcoming Sunday and Monday, on November 1 and 2, the Catholic Church will celebrate All Saints and All Souls Days, which means it’s also time to stock up on candy for Halloween night. The word "Halloween" is a contraction of the words "All Hallows Eve," meaning the night before All Saints Day.  The merchandising bonanza Halloween has become has obscured the core meaning of the holiday to the point where few people know its religious significance.

Caritas is a Latin word meaning "love."

As used in scripture, it simply means "love", as in, Deus caritas est, "God is love."  1 John 4:8.  

In some versions of scripture, the word is translated into English as "charity" or sometimes simply as "God's love."

St. Thomas Aquinas understood it to mean "the friendship of man for God," the most excellent of virtues, in accord with 1 Cor 13:13 ("..but the greatest of these is love").