Aristotle viewed the reality as forms of inseparable matter that moves from one contrary to another. Potentiality exists and it actualizes itself from within its being. Much later we have carved out these changes and compose things as separable. German Idealist like Kant and Hegel go back to this way but not abandoning the science of separability. What they concoct is reality mediated by thoughts. This mediation is not the Aristotelian sense, but returning to that state from vantage point we know we lost this connectedness.
Language is seen as the glue that hold being together for Idealism. It is given that the world is seemingly atomized in the way it shows us, but as we ponder it we realize it's atomization is irrelevant in our conception of it and in a deeper way our conception of reality is also a mirror to what reality is. In this way it very much like glue and we few things as separated when we don't understand them. An example of this would be how we view the environment and our transportation as separate but knowing our transportation, I'm meaning cars here that use gas engines, take part in the environment by either polluting the air. In a naive way we see a car and a cloud as separate and we only see they relate by thinking more and conceptualizing the relatedness.
The car example is a simple one. Knowledge is gained by reason which seems to be empirically gathered. Empirical observations are isolated and disconnected. Reason sees the connection and makes concepts whole which returns back to Aristotle's philosophy of seeing being as stark boundaries that are internally unable to be broken apart.
