Spencer W. Kimball describes the strenuous effort required to receive revelation.
Edward L. Kimball, Lengthen Your Stride: The Presidency of Spencer W. Kimball (Salt Lake City, UT: Deseret Book, 2005), 216
Revelations will probably never come unless they are desired. I think few people receive revelations while lounging on a couch. . . . I believe most revelations would come when a man is on his tip toes, reaching as high as he can for something which he knows he needs, and then there bursts upon him the answer to his problems.