Null is the unknown, the indeterminate, the not yet learned. It is where all things come. One is a subset of the many. First and Before are contained in an ordered list. These are all known and limited.
Sayings like "I am the One", or "No other before me", all can be true AND be contained. First in a ordered list no matter how large, grand, good or whatever, is still small enough to be contained. A circle of infinite radius with a fractal edge is still contained in the set of circles, the set of fractals.
The beauty of the null is it can contain the perfect and the imperfect, the good, the bad, the many, the few or the zero, it can even contain the imaginary.