Enhancing one’s overall knowledge –-> spiritual, physical, intellectual, and emotional

God’s glorious handiwork

To “discern with the eye of oneness His [God’s] glorious handiwork, and look into all things with a searching eye.” - Baha'u'llah (‘Tablets of Baha'u'llah revealed after the Kitab-i-Aqdas’)

Question: The Halloween customs that are observed in North America on October 31 come from the beliefs of which people? What were those beliefs?