As Above, So Below!  This is HOW IT WORKS:

The Sun Sign is what you project!
It is the center light-- that what you project in self expression!  Naturally, it desires to replicate the purpose, function and creative qualities apparent in the season (i.e., month) in which you were born. 

The Moon Sign indicates your emotional reactions! 
Just like the moon reflects light, your moon sign indicates how you react or reflect back the energies that "are projected at you".  The monthly lunar cycle places the moon in a new sign
every 2 to 3 days.

The Ascendant (or Rising Sign) pinpoints your "Physical Spot of Being".   
The rotating Earth, in its daily spin, quickly changes the sign "rising" on the eastern horizon. This sign defines your POINT on the Earth, and appropriately, your perspective or view of the "ever present, becoming world".  Physically, the "sign rising" is usually what people see first. After all, it is the exterior mask of your "physical container". When your "facial flesh" is in neutral (not projecting or reacting it's solar and lunar qualities), it usually reveals the shape of the underlying bone structure-- which is molded to match the shapings associated with the Rising Sign.  Notably, the skeletal shape also strongly influences the nature of your "body type".  (See if your ascendant matches the corresponding  body type, illustrated in the "Body Language" section on our site).

CONSIDERATIONS that may alter physical appearance:

The Sign In Which A Component Is Placed defines the true nature (and expressive qualities) of that particular part of the personality.  I.E., a person with moon in Leo will become quite dramatic when he or she becomes "emotional or reactive".

Planets In Conjunction with the Sun, Moon or Rising Sign will alter the sign's expressive and physical qualities-- by inducing properties of the sign associated with that planet.  For instance, Saturn on the ascendant will render "body shapings" associated with Capricorn.

The Placement of the Ruler of the Sun, Moon or Rising Sign (via house and sign) will alter the quality of the component's expression.  For instance, as our Bob Dylen Snapshot describes, Geminis with their ruler Mercury in Taurus and the 5th house will become very Taurian in their creative work.  On stage, Bob Dylan is immobile and fixed when he performs.  This immovable quality is not what we would expect from a Gemini.

DNA prevails!  There are lots of Gemini Native Americans, but few blonde haired ones.

Classic SNAPSHOTS of the Influence of the Sun, Moon and Rising Signs of Celebrities