Once you enter the great gulf nothing can stop your fall into the core. The pit is everything below the mantle. If the sides of the pit is the lower mantle, then the pit includes the great gulf.
Sides: בְּיַרְכְּתֵי – beyerekah
Method
A common response to the human soul is that there isn't one because science can't detect it. However, we first detected gravitational waves in 2015. What else can't science detect? We don't know, science can't detect it.
Sheol
Sheol refers to life beyond the grave, quite literally an underworld realm of the dead. It's also modified in a variety of ways which can be grouped to correspond to the main regions of the interior of the Earth.
This Place of Torment
We're at the end of our trail of deduction for today and the only conclusion which we can reach is that the rich man is in the molten core of the Earth, the pit. Abraham and Lazarus are in the lower mantle, the midst of hell.
Direction of Motion
The direction of motion is a clue that we've used to put all of the puzzle pieces together. We could induce a meaning to a passage, or we could compare it to our model and deduce that the pit is lower than the grave.
Down to the Pit, The Lowest Hell
It's been possible to parse the difference in nuance between the various words used to refer to the afterlife, which corresponds to the interior of the Earth, because we have an absolute frame of reference.
Hell is a Destination for Souls
We (that's me and the Holy spirit) have made an extensive study of how the zones of the interior of the Earth, or levels of hell, may be deduced from Biblical Hebrew and Greek.
Ascending and Descending
If our souls start in hell then this life is our one chance to escape it forever. We have been given an opportunity to respond to the truth which has been revealed to us. No one has an excuse.
The Lowest Parts of the Earth
The lowest parts of the Earth is one of the many ways in which the Bible refers to the core of the Earth.
The Sides of the Pit
We (that's me and the Holy spirit) have been working towards the construction of a model of the interior of the Earth which fully integrates every possible way that hell or the afterlife is referred to in the Bible.