Final answer:
An ellipse is a mathematical concept that can be used to illustrate the separation between man and god and the lengths god has gone to to reunite us with him.
Step-by-step explanation:
An mathematical concept that can be used to illustrate either man's separation from god or the lengths god has gone to to reunite us with him is the concept of an ellipse. An ellipse is a closed curve such that the sum of the distances from a point on the curve to the two foci is constant. By using the properties of an ellipse, we can visually represent the idea of separation and reunion. For example, if we consider one focus to represent man and the other focus to represent god, the distance between the two focuses can represent the separation between man and god, while the constant sum of the distances from a point on the curve to the two foci can represent the lengths god has gone to to reunite us with him.