Last night, Lincoln and I were talking at bedtime. It was the normal conversation, tractors and wheat and general farming info. Then he asked me, "Where's Grandpa Melvin?" It was a logical bend in the conversation. After all, Grandpa Melvin was a farmer. He spent his life driving tractors and combines, so much so that his body was bent from the long hours watching his implements and checking the tractor's blind spot. Lincoln and Grandpa Melvin bonded over their mutual love of the farm. Grandpa would call him, "My boy Lincoln." I responded with an explanation of how his body is gone but his spirit is in heaven. Not bad , I thought to myself. But I wasn't prepared for the next question. "Where IS heaven?" emphasis on the IS. By this time, he had turned in my lap to face me, his innocent blue eyes searching my face for an honest answer. "Heaven is where our hearts and souls go when our bodies aren't on earth anymore. We ...