The singularity at the center of the Earth is an assembly of souls, each soul is a gravity node, the nature of which is the act of concentrating to hold a thought.
How Precious are Thoughts?
Gravity is Thought
Minded really means the thought. The link to gravity is a deep end that we can go off. Thought is the act of holding on to an idea, concentrating. Concentration generates a gravitational field. That's the singularity.