It's one of my favorite talks, but Elder Bednar uses it in "Things As They Really Are."
Satan does not have a body, and his eternal progress has been halted. Just as water flowing in a riverbed is stopped by a dam, so the adversary’s eternal progress is thwarted because he does not have a physical body. Because of his rebellion, Lucifer has denied himself all of the mortal blessings and experiences made possible through a tabernacle of flesh and bones. He cannot learn the lessons that only an embodied spirit can learn. He cannot marry or enjoy the blessings of procreation and family life. He cannot abide the reality of a literal and universal resurrection of all mankind. One of the potent scriptural meanings of the word damned is illustrated in his inability to continue developing and becoming like our Heavenly Father.