This factor is an event in nature which is the focus in nature for that act of awareness, and the other events are perceived as referred to it.

This event is part of the associated duration.

I call it the 'percipient event.' This event is not the mind, that is to say, not the percipient.

It is that in nature from which the mind perceives.

The complete foothold of the mind in nature is represented by the pair of events, namely, the present duration which marks the 'when' of awareness and the percipient event which marks the 'where' of awareness and the 'how' of awareness.