At one point or another, many of us have experienced this strange phenomenon. You know, that point in time when you're going about your day, and you get the strangest feeling of familiarity, like you've already lived this moment--commonly known as déjà vu. It's a weird incident to be sure, and I've read about it being associated to temporal lobe epilepsy, and there are theories about it being some sort of wish fulfillment, as well as the brain mistaking memories from the past with the present. However, I was discussing it with my mother one day, and we came up with our own theory. What if, before we came down to earth, we were shown what our lives could be?
For example, when you receive your patriarchal blessing, you are told that if you keep the commandments and live righteously, you will receive promises and blessings for the future. Essentially it's a blueprint of what your life could be. So, what if that's not the first time we encounter that blessing? What if the Lord already showed you what He tells you in that blessing--so when you have déjà vu, for just a second, you remember that you've seen this before. Of course, that was be assuming everyone who has ever experienced it was living the way they should be, which may or may not be true. But maybe, at that moment, they were? Just a thought.