As a pagan, I celebrate Hallows (not Samhain, which is a festival of Irish origin). There are similarities, the feasting, the remembering of ancestors, both by blood and by kinship. But it is not "summers end" for me, which I think is sometime in September. There is also some debate about whether it really is the "new year" as there is only one piece of evidence to support that supposition.
Hallows is one of the holiest nights of the year, it's a time for remembering the people who are the reason I am here, in this time and this place.
There is absolutely nothing about devils, pumpkins or anything else involved. Those are items I relate to the secular Halloween. I have always seen that are about facing up to fears, and learning not to be scared of monsters by poking fun at them. By doing this, children learn to be braver, and to stand up to the real life monsters, who more often have a human face.
If anyone is interested in finding out more about the real history of Halloween, or any of the other festivals that we celebrate in the British Isles, I can highly recommend "Stations of the Sun" by Professor Ronald Hutton.