The Holy Ghost

We were sitting down at dinner one night, reading our "Month of Love" scripture for the night. It mentioned the Holy Ghost, so I attempted at an explanation and in the process realized that this is a really difficult concept for a 3-yr-old to understand!
Net: "He's like us but you can't see him or touch him....but you can feel him...hmmm..."
Andrea: "Can I touch his head?"
Net: "Well, no, we can't touch him, but we can feel good when he is with us."
Andrea: "Can I say 'hi' to him?"
Net: "Yes, but he might not say 'hi' back, because, well, ummm...."
Andrea: "Where is he?"
Net: "Well, he can be with us when we pray and ask to have his comfort or have him help us."
Andrea: "He can come here?"
Net: "Yes, but we don't see him."
pause...
Andrea: "He can't eat my dinner!"