The Sun-Pluto type is so committed to anything that is genuinely cared about and will often show a deep affection for loved ones, and a powerfully protective nature, safeguarding and shielding those they treasure from any sign of danger, real or imagined. When the person is involved in a project/individual their penetrating and emotional nature means they can get attached and totally absorbed in a belief a person or an idea. A lust for something, and usually intense longing for some kind of fulfillment is present, and the Sun-Pluto individual has a piercing quality, one that reached straight into the heart and soul of the matter. It is rare for these people to make a neutral impression on others, and many of their personal relationships need to contain the big three - passion, intimacy and commitment.
The usual interpretation of Sun square Pluto suggests there will be far reaching changes and the chance for regeneration, transformation and rebirth. It is not an easy task to try and interpret what this metamorphosis involves for a specific person. Though Astrologer Lyn Birkbeck has this to say on the meaning of transformation...
If this seems 'unfair' it is only because you are ignorant of the chain of events, of previous actions or failures that have been amounting to a Critical Mass over some time. Sooner or later comes a time and a circumstance where there is no room for equivocation or compromise. It takes concentration of experience to force you to concentrate, and look more deeply into the root causes of things. Sun Square Pluto - Exposes the Individual to the Darker Aspects of Life
Sun-Pluto people are concerned with the mysteries of existence and love to dig deep for the answers, and often remain a mystery to others. Indeed, they prefer it that way, and usually this passion, desire and lust for life and its secrets gives a profound depth of knowledge, a keen insight, and deep awareness of the world. When the person changes there is usually a marked adjustment in their level of emotional maturity, it usually takes their very own dramageddon and the coming of a period of tremendous pain and turmoil uncovering bottled anger inside, the moods are of course complex, and the aspect is possessive and penetrating with a deep understanding of psychoanalysis. A profound ability exists in this individual to gain exceedingly subtle meaning, and it opens the door to many mysteries, especially of the esoteric nature, implying knowledge of the select few, as always the unseen realms of life are a powerful draw for the individual.
The person possesses a determination that cannot be matched, they keep digging until they find what they need. The square aspect formed between the Sun and Pluto creates a few weighty problems around the Sun principle. The Sun in the natal chart rules over our identity, men in general, the husband, father, self-expression and purpose in life. The nature of the Sun is to radiate, shine and shed light on all things, and as Dane Rudhyar writes, "The Sun is the Individual Center "I" and the birthchart becomes a mandala." The Sun square to Pluto exposes the individual to the darker Plutoinian aspects of life - taboos, abuse, violence, mental illness, power and control, but also gives the ability to transform these areas, to find carthartic release.
The square aspect develops and strengthens the personal will, because that is what is needed to meet its demands. Lack of skills or resources to meet any current crisis may be a cause for frustration or concern. The aspect implies the direct application of energies to accomplish immediate ends. The energies or types of actions symbolized by the planets involved will be applied forcefully. The square's mode of action is abrupt and creates discomfort, which is a spur to action, and also producing turning points in the life, with critical junctures. This aspect is one of obstruction, disruption, imbalance, frustration of desire (or self-realization through heroic struggle) and is the most dynamic of all aspects. It allows for the building of frameworks or structures on which the future will depend. By Wikipedia
Sun square Pluto types remain self-controlled for long periods of time, and sometimes it can be difficult to get to know the real person. Still, knowing them intimately doesn't always give complete access to the individual, and there will be a door that will always remain hidden. In truth, these individuals are viewed as extremely complex, secretive and difficult to analyse, and according to astrologer Sue Tompkins these types take great pains to hide themselves.
Those with Sun square Pluto are obsessed with achieving their goals, and can be just as competitive as Sun-Mars types, but they are less open about it. Often the wielding of such a concentrated will-to-power helps them achieve their objective in the end. The connection of the individual to Pluto and Hades is a profound one, representing a mythical figure that was unapproachable, feared due to this powerful personality, those with strong Pluto contacts to the Sun have the feeling that they are invincible and will go to any lengths to get what they want, and to lose almost feeling like a death, and the person invests everything into winning.
When the individual forms close relationships it often brings up some deep complexes about trust issues and forming bonds it is sometimes difficult because of the fear of abandonment, death, and painful endings. Unresolved feelings of inner turmoil in the personality results in overreacting, and seemingly trivial events trigger explosiveness. Another issue for these individuals comes in the form of authority, and the Sun-Pluto person may have feelings of hatred towards those in positions of power. The individual may use manipulation and psychological pressure in an effort to gain the upper hand, with many lessons involving the use of personal power requiring the confrontation with one's own darkest shadow. Sun-Pluto types have incredibly strong desires to know themselves and their deepest psychological recesses.
Sun-Pluto people may also struggle with the feeling of being worthy and self hatred may be an issue. Until they are able to accept themselves, the person remains feeling bad, unattractive, unworthy and unlovable at their core. The father often plays a significant role in the individual's solar development. The father may be an overwhelming personality that is able to completely control the child, and the individual may have felt they had no "space" in childhood, unable to breathe, and the feeling of being invaded is often a common one. A child with this contact may feel helpless and bullied by his sheer presence. The occurrence of the death of the father, or of a loved one, is another feature. The bond with the father is also often a very close one and he inhabits an important place in the individual's psyche.