A.S.
Thank you to Iluvmylife for the hospice link on cremation....it makes some sense.
For us though, I did use the analogy of logs burning in a campfire. Not sure how else to explain how a body gets turned to ash? My kids were 3 and 5 when I used the analogy, and for them it made sense, as we do a lot of camping. I explain that everything in a fire eventually turns to ash, houses, toys, etc. It's what happens. I'm usually a little more literal than most, however.
I'm very sorry for your loss. ((((hug))))