That primitive riff at the beginning of the track repeats endlessly and is somewhat monotonous for a reason. The song is about our existence, and how it's all been achieved through endless creation and replication. How were we all created? Sex obviously, a.k.a. the old in-out-in-out, and one day I realized the riff is actually really similar to the act of sex. There's only two notes which repeat endlessly in a violent groove, just like the thrusting in and thrusting out of a penis during intercourse.
Then I thought, maybe the reason the intro is so long is because it's meant to represent the human race's entire lifespan. When you go back, our only purpose from the start was simply to survive, reproduce, and then protect our offspring so that they could repeat the process of surviving and reproducing as well. Now think about how long we have been doing this. Think about how we're still doing it today, simply trying to stabilize our lives as best we can so we can settle down and repeat the cycle all over again. It's been our sole biological purpose since the beginning and we're going to keep doing it until the day we're destroyed, either by ourselves or by something else. If the Seer, the character the album created, is an all-seeing all-knowing spectator of all that has ever happened and will happen in the universe, it probably sees our existence as very petty, tedious and dull compared to whatever is happening in all the other galaxies. We've spent this long of a time existing, fighting all of these wars and colonizing all of this land, and for what? Just to go in and out and in and out again. That's what the long and hypnotizing intro of Mother of the World represents.
I don't mean to seem like an edgy nihilistic kid. The Seer just sounds like a very nihilistic album to me and when I realized this is probably what Gira intended it blew my mind. The dude's a genius.