I could say that it is the precise connection between moments through time that form the basis for experiences and learning. Hopefully, this wouldn't surprise you too much.
However, thinking more profoundly about connections per se may pique your interest a bit more. Connections, links, or associations are ubiquitous in our daily experience. We can have connections to other individuals, to objects, to the Earth; we can have connections in thoughts and ideas. In an abstract sense then, it seems that the concept of connection is the central entity that permits reality. We would not be able to form a coherent view of reality without connections. Can you at all imagine a reality without connections? Without associations, there would be no separable entities, and thus no reality as we know it.