As alluded to before, the type of organic machine called ‘humans’ is a planetary requirement and is in no way personal. Indeed, if all humans were to develop beyond the need of planetary existence suddenly, she would have to immediately evolve another species on the planet to take our place and fulfill the role that humans currently serve. Fortunately for her, certain safety mechanisms are in place to prevent mass evolution, and in The Work, we often use the analogy of a prison.
In prison with 9 billion prisoners, such as the earth's current population, the prison guards are not likely to notice if one, two, or even a handful escape. But, if too many go missing, the guards will notice and immediately stop it. This has happened in the past with certain civilizations. It’s a matter of self-preservation for the planet – she needs humans and will act to prevent evolution in masse before the appropriate time.
On a microcosmic scale, the same principle applies. Take the liver, for example. Each of us has a liver that serves a particular function in the body. Yet, every day, some of the liver's cells go missing, either through cellular death, being swept away in the bloodstream, or other bodily functions. These missing cells are replaced, and the organism doesn’t suffer. If many cells go missing, the body can no longer maintain balance and signals that something is wrong.
The analogy also applies to the planet, except that liver cells do not have the opportunity to become something else, such as brain cells. In contrast, human has the potential to serve a different purpose in the cosmos. However, it cannot happen to everyone all at once. This is the reason for small esoteric schools like The Eminent Way.