The pagan feast of Halloween is foreign to the Christian tradition and has become a superstitious and empty way of imposing mindless triviality.
The day has its origin in the Celtic New Year, which celebrated the return of the spirits of the dead to their homes. Hence, those who observe Halloween, though they are probably ignorant of what they are doing and why, are in reality celebrating death, the devil and Hell.
I encourage Christians to celebrate the Christians truths of these days with renewed faith as a response to the real concerns of mankind today.
Also, as an alternative to Halloween, might I suggest that parents not allow their children to go trick-or-treating, but instead attend costume parties where they can dress as Biblical figures?