Jay E. Jensen, “Have I Received an Answer from the Spirit?,” Ensign, Apr 1989, 21
It is not uncommon for the Spirit to speak directly to the mind and the heart together. The Lord told Oliver Cowdery, “I will tell you in your mind and in your heart, by the Holy Ghost, which shall come upon you and which shall dwell in your heart.
“Now, behold, this is the spirit of revelation.” (D&C 8:2–3.)
When the Holy Ghost speaks, our minds may be struck with insight and clarity akin to sudden light. At the same time, our hearts may burn or we may feel flooded with joy or deep gratitude or love. Whatever particular feelings occur, they occur simultaneously in the mind and in the heart.
Some common expressions investigators often use during missionary lessons are “That makes sense,” “I’ve always believed that,” “Of course.” Sometimes, it may be a simple affirmative nod. At these times, the investigators are experiencing “enlightenment.” When we recognize the truth through the Spirit, we understand things—they become clear to us. As the Lord promised, “I will impart unto you of my Spirit, which shall enlighten your mind.” (D&C 11:13.)
That feeling of understanding is always accompanied by some type of positive emotion. In the scripture just cited, after the words “enlighten your mind,” the Lord adds the phrase “which shall fill your soul with joy.” Alma describes this process of enlightenment and its effect on those who experience it:
“We will compare the word unto a seed. Now, if ye give place, that a seed may be planted in your heart, behold, if it be a true seed, or a good seed, if ye do not cast it out by your unbelief, that ye will resist the Spirit of the Lord, behold, it will begin to swell within your breasts; and when you feel these swelling motions, ye will begin to say … It beginneth to enlarge my soul; yea, it beginneth to enlighten my understanding, yea, it beginneth to be delicious to me.” (Alma 32:28; italics added.)
Not only is our understanding affected, but our souls seem to expand—the whole experience is delicious to us.