In calculus, as you get closer and closer to zero, it can be observed that the answer approaches infinity, which is a never-ending count to a larger and larger number. If you look at the graph of the equation y = 1/x, you can see how both curves of the equation never touch the origin of zero, nor have values of 0. If you approach zero from the right side, you continue on toward positive infinity. If you come from the left side, you go towards negative infinity.
What is the smallest one can observe and likewise, the largest? Zooming out seems to be easy but when one goes to the source at which all exists,
For example, take a look at the air around you. Notice the space. In that space, there are air molecules such as oxygen, nitrogen, carbon dioxide, etc. Unfortunately, our visual sense is limited to the wavelength of visible light of about 390 to 700 nm, so we cannot see the higher frequency waves that are emitted by these molecules. Nevertheless, you can visualize them to be floating there and they are extremely miniscule.
But we know that those molecules are made up of even smaller parts, such as electrons and protons. How about even smaller than that? Well, there must be some end to it, right?
You may say, well, it must be right before you reach zero. But what is that number right before zero? Is it 0.0000001? But 0.000000000000000001 is smaller, so is it smaller than that?
When you no longer try to encapsulate the whole into a tiny segment or part, you realize that the source is indeed infinitely defined as the whole and not exclusive.
Please check out my article "The External World Is You Too", which further unifies life.