Nephilim is often translated ‘giant’s though a better definition would be ‘those who came down, those who descended or those who were cast down.” In the sense that they had spirit fathers and human mothers, they could be considered half-breeds. In the Sumerian cuniform, these beings were called Anunnaki.
Halloween has grown from a Celtic high holy day celebrated quietly by pagans and wiccans to the second highest retail holiday next to Christmas. Spiritual lines between evil and righteousness have been blurred to the point that many who dress up in costumes, go trick-or-treating, or visit haunted houses actually say they aren’t celebrating Halloween! There are some who admit to being pagan and are proud to celebrate in every way imaginable from orgies to sacrificing animals and children.