As a missionary kid in Papua New Guinea, I loved to sit in the creek near our village home and play with the multi-colored rocks. While the rapids swirled around me, their roar drowning out my voice, I sang at the top of my lungs, "This world is not my home." This song kept me grounded when I wasn't sure where my home was, but I never recognized the importance of keeping heaven in my sights—until I studied Jude's short letter.