Of course with the beginning of a new subject, the curriculum calls for a quick summary of historical facts about the subject. Neuroscience followed this same pattern with a description of the various scientific breakthroughs starting at the beginning of man and down to today in connection with the brain and nervous system. The history is long and probably uninteresting to most so I will not share it all. What I do want to share is an interesting fact that I had not really given serious attention. As humans we have no always known about our body and their several functions obviously. One important case is the brain and its intelligence center role. It wasn't until the 4th century B.C. that man first proposed that the brain had control over intelligent functions. Before that point, the heart was largely considered the center for the mind and control of the body. Now this is not a breath taking fact and I don't expect it to amaze anyone. The importance of this fact has to do with the history of the Book of Mormon and even the Bible and I'll show you why.
We must first remember the chronology of the Bible and Book of Mormon. The Bible is easy because it records from the beginning of the Earth until today. Earliest records were written by Moses so we must more strictly keep in mind the chronology of the writers instead of the content. The Book of Mormon is even more interesting however because it takes place from approximately 600 B.C. until 400 A.D. According to the two of these timelines, the writers and authors of these records were among the generations who still believed that a humans intelligence, emotions, and judgments were controlled by the heart. Large evidence of this can be found in the Egyptian traditions that date possibly even in the time of Moses. When embalming their dead, these people thought so little of the brain and its necessity that instead of placing the brain in a jar with other important organs, they scrambled it, pulled it out through the nasal openings and threw it out. Gross yes, but this must make one wonder then about the certain beliefs of even prophets and men of God all across the world during these very early days.
When Lehi took his family into the wilderness and his family sailed across to the Americas, he had missed the first serious objections to the heart-mind theory by approximately 200 years. He took with him the original feelings of the egyptians and possibly other cultures who still believed the mind remained in the heart and that intelligence and control was seated in that same organ. Realizing this lack of knowledge, I took my investigation to the Book of Mormon itself. Again, I could list an incredible amount of sources to back all of this up, but I don't care to spend the time on that here in this post. However, I recommend looking up "Heart" in the index of the Book of Mormon to see how it is used in the language of the people of Nephi. Essentially, there are many many references which place the heart and mind as connected things. Phrases like "Open your hearts that you may understand the things of the Lord". "...and understand with their hearts", "...and he prophesied whatsoever the Lord put into his heart", "...and they did understand in their hearts the words which he prayed.", "... ponder it in your hearts.".
Of course as is my way, I will not make a declaration of truth in this case, but I do find it overwhelmingly evident that the people within scriptural record must have had a knowledge of the mind that is different from what we now know today. Now this obviously does not alter the intent of the doctrine and the principles that we learn from the Gospel, but it makes one ponder the minute details in which how people pictured the reception of knowledge and the governance of oneself.
Also as is my way, I notice that there are also some details that refute my findings. You'll notice in certain repeated phrases that words like Mind and Heart are always separate. Meaning one is never used to completely describe the other. An example is the common phrase "Heart, Might, and Mind". Phrases like these make me ponder the distinction even though their understanding should clump pretty much all three together into one. Perhaps there is simply no word to describe it all together or they had a decent understanding of separate functions of the heart knowing it as a life giving organ, a strengthening organ, and (to them) a center of emotion and belief. There are many more examples of this interesting mind-heart separation that I will not include here but i again encourage the reader to investigate this deviation from my theory.
Ultimately I still believe that the ancient believers understanding of anatomy was significantly limited and therefore their beliefs of functions of inner organs are most likely skewed in some way. One last confusing note came from a temple visit I made a few days ago. While participating in certain ordinances, prayers were said that described portions of the body and their functions. One of those prayers described the brain being the center for intellect. Now, remember that from modern revelation and careful scripture study it is evident that the saints of the New Testament performed temple ordinances as we do today. Whether the prayers said then were exactly the same as we perform them today I have no idea and there's really no way we can know. However, if they WERE the same, then there arises an interesting thought. Although Hippocrates would have already made his theory that the brain was the seat of intelligence, Aristotle later refuted that claim and cemented once more that the heart controlled the mind and once again the heart was viewed as the control center. Those living in the time of Christ most likely were still living in a time influenced by Aristotle theories. Thus, for the prayers of temple ordinances to claim that intelligence was in the brain, they would be challenging the common beliefs of the time. Did some members have a trouble with this concept? I have no idea. Were the prayers said differently in conjunction with their current beliefs? Again I can't say. One more question to ask the God above when I get back home.