It is a compound of the awareness of the passage of nature, of the consequent partition of nature, and of the definition of certain parts of nature by the modes of the ingression of objects into them.
You may have noticed that I am using the term 'ingression' to denote the general relation of objects to events.

The ingression of an object into an event is the way the character of the event shapes itself in virtue of the being of the object.

Namely the event is what it is, because the object is what it is; and when I am thinking of this modification of the event by the object, I call the relation between the two 'the ingression of the object into the event.' It is equally true to say that objects are what they are because events are what they are.

Nature is such that there can be no events and no objects without the ingression of objects into events.

Although there are events such that the ingredient objects evade our recognition.