The Moon is given enormous, paramount importance in ancient Astrology.
The Moon—that is what we have become accustomed to calling this body in Space.
I devoted a great deal of attention to the Moon here:
The Moon does not rotate
So, the Moon is not a name!
For example, there is the planet Mars, the planet Jupiter, and the planet Earth.
But the Moon is not a name.
It is the same as calling Mars not Mars, but “the Planet.”
For example, I could tell you that soon the Planet will move into the sign of Cancer.
Which planet?
Likewise, most planets have their own moon. Some even have several.
Which Moon in Space do you mean exactly?
But everyone stubbornly calls it the Moon...
Well, we can guess what they mean... At least we only have one Moon...
But it must be said that the names of the planets are also somehow far too unclear.
In Sanskrit, one name; in Greek, another...
There are scientific names too—for example, the Andromeda Galaxy is called not Andromeda, but by a number. Its number is M31.
In essence, all planets could be given numbers.
For example, Mercury is 1.
Because it is the first from the Sun.
The Sun itself could be called S, because in practically all the world's languages, the letter S comes first. Even in Sanskrit—Surya. In Latin, Sol.
Therefore, to identify Mercury more precisely as belonging to our Sun, Mercury could be called S1.
Accordingly, Venus is S2.
Earth is S3.
The Moon (yes, you guessed which Moon) is S4.
Why is the Moon S4, that is, farther from Earth in the numbering?
Because in its movement around the Sun, the Moon has an orbit that periodically takes it farther from the Sun—farther than Earth's orbit.
I will not explain everything here, since I specifically created a topic about the Moon—
The Moon does not rotate. This way, I can refer to it knowing that you have already read and understood everything.
Let us continue.
Mars is S5.
Jupiter is S6.
Saturn is S7.
Uranus is S8.
Neptune is S9.
As you know, 5 is the level of the Human Being.

Up to Mars (Five), these are all planets of the small group.
From Jupiter onward, these are spiritual planets situated much farther away than the planets of the small (human) group.