Our inability to "know it all," however, does not absolve te need (nor should it diminish our desire) to know what is "knowable." Perhaps by so exhausting the knowable, we push and probe and occasionally even penetrate the infinite. The Prophet Joseph was our exemplar in this regard. He was the "master asker." His queries triggered the First Vision, the Word of Wisdom, the revelation on celestial marriage, the vision on the three degrees of glory, and in truth, almost every other notable revelation in this dispensation. He exploded the parameters of divine knowledge because he righteously asked. He was empirical proof of the divine invitation, "If thou shalt ask, thou shalt receive revelation upon revelation, knowledge upon knowledge, that thou mayest know the mysteries and peaceable things" (D&C 42:61).

Tad R. Callister, The Infinite Atonement. 2000. p.19,20