Youngest Daughter discovered this passage via Uncle Tom's Cabin, which she read this weekend for her American history class:
"Let not your heart be troubled: believe in God, believe also in me. 2In my Father's house are many mansions; if it were not so, I would have told you; for I go to prepare a place for you." - John 14:1-2
In Uncle Tom's Cabin, it occurs in a shortened version: "Let not your heart be troubled. In my Father's house are many mansions. I go to prepare a place for you."
She preferred the second version to the first. True to the church-deficient nature of her upbringing, she's not comfortable with exhortations to belief; but the idea of preparing a place for a loved one in God's mansion appealed to her mightily.