Our supposition of zero is that it’s inherently nothing - a null. But I think it can also be interpreted as either an equilibrium point or the infinity.
The rationale for the first interpretation is that all things in nature has a centric and balancing point of some opposing factors (i.e. Newton’s Third Law of Motion, Archimedes' balancing principle, electric charge, etc.). Numeric zero is simply an extension of this idea where it is a net-zero sum of the positives and the negatives.
The rationale for the second interpretation can be summarized with the first interpretation, where zero is an overloaded, infinite recursion of the net-zero sum.