Understanding your natal chart, or that of another, can be
simplified by a straightforward and fun exercise: assigning
roles to each personal planet (the Sun, Moon, Mercury, Venus,
and Mars) and imagining exactly how these individual "players"
might get along—inside us!
In a general sense, we can think of our Sun sign as our
internal Adult. The Sun will listen to all of the other planets'
input, but the Sun is the boss—the one who screens the action. The
Sun will send out different planets on different missions. For
example, Mercury when it is time for expression, Venus on a date,
Mars when action needs to be taken. However, the Sun is a person's
internal parent or adult, and few things get past him/her.
The Moon is our internal child. The Moon represents our
feelings, often those that are difficult to put into words. When
we are feeling and thinking one thing, and we are asked what is on
our mind, more often than not, our Sun (adult) screens these
feelings so that what comes out of our mouth is not quite the true
emotions we have been feeling. Those difficult-to-express emotions
and thoughts are our Moon, and what we let out of our systems is
more often than not screened and refined by our Sun. How we
express ourselves (the style in which we communicate), however, is
ruled by our Mercury. Mercury does the talking and rules our more
impersonal thought processes.
Venus can be seen as a more refined Moon. Venus expresses what
makes us feel good, and is inspired when we are in partnership and
Mars represents action. Our first active impulse is ruled by
Mars. What fires us up, what gets us out of bed, and what lights
our fire—these fall in the domain of Mars. Mars represents impulse
and embodies our instinct for survival—the "fight or flight"