Here is Meditation 8 from the Master Key System
Meditation Eight progresses from the previous one.
The intention of the author was to start with the first one and not skip ahead to the next one before each one has been completed as instructed.
Meditation Exercise 8:
In your last exercise you created a mental image, you brought it from the invisible into the visible; now I want you to take an object and follow it back to its origination, see of what it really consists.
If you do this you will develop imagination, insight, perception, and sagacity. These come not by the superficial observation of the multitude, but by a keen analytical observation which sees below the surface.
It is the few who know that the things which they see are only effects, and understand the causes by which these effects were brought into existence. – Charles Haanel