“When you climb up a ladder, you must begin at the bottom and ascend step by step, until you arrive at the top; and so it is with the principles of the Gospel– you must begin with the first, and go on until you learn all the principles of exaltation. But it will be a great while after you have passed through the veil before you will have learned them. It will be a great work to learn our salvation and exaltation even beyond the grave.” Joseph Smith, History of the Church, 6:306-307