The Katha-Upanishad refers to material manifestation as
"A tree standing on the ground of material nature, bearing two types of fruit: sweet and sour, symbolic of happiness and distress. Its roots go in three directions represented by goodness, passion and ignorance. The first bird is the localized aspect of the Supreme One, referred to as Päramätmä the divine spirit, the Entity who needs neither food nor drink. The other bird representing the mortal has to select his food from the offerings of the tree: a choice between distress and happiness. Sometimes he eats the fruits of happiness and sometimes the fruit of distress. Having eaten the fruit, he expands along with the three directions of the roots, the modes of material existence, namely, goodness, passion and ignorance."
This individual growth is what makes two mortals dissimilar. Growth is strongly connected with past karma and guidance upbringing. The realities of life have different meanings for each individual. Why does a stable and rewarding professional relationship become distant? Why does the accommodating boss turn into a difficult task master? Why does the team lose spirit for no apparent reason?
There is no end to such questions, but all the answers can be found in the map of growth can be analyzed. Unfortunately, this is an impossible task for mortals. However, this growth can be monitored by our own efforts and choices and Astrology can be the guide that shows us our very basic instinctive tendencies. Planets and their positions give our respective Ascendants and Moon signs, along with other planetary positions. This doctrine can be a very useful friend philosopher and guide, provided we are open to accepting what it shows, provided we are ready to go beyond the predictive elements.
The most important aspect of Astrology is that it shows you the mirror image of your Karmic journey. What one has to understand is that there is no black and white, no good or bad in a horoscope, each horoscope is misaligned somewhere, that is why the person is born.
The significance of the 10th house takes us to the realm of career and status in life. It displays fundamental possibilities. The 10th is a Kendra and as such, any planet located here will be prominent, powerful, and influential all through life. As this is an upachaya house (attributes that grow with time and effort), any possibility indicated by an occupying planet will grow in strength as life progresses. This in effect also gives great strength in overcoming all kinds of obstacles.
The house indicates our ambition, status, profession, father, fame, recognition, foreign travels or affairs, political power, authority and many others. But very importantly, it signifies our determination, self-reliance and patience. The 10th house reveals holy pilgrimages, as well as good and charitable deeds, compassion, etc. Father's reputation is also signified by this house.
A strong 10th house will give the person a position of power in career and fame.
Different planets may fare in a very unique manner in this house, irrespective of their lordship. Let us see how they fare and how it affects our career or 10th house significations in general.
I will start with the Sun, as it is the most important of all planets.
The Sun is a great planet, but it is a natural malefic. All malefic thrive in an 'upachaya' house so by the virtue of this tendency, Sun does well when located in the 10th house. Sun in the 10th house is an excellent placement for career and the person may get success in all undertakings. The Sun is the significator of the 10th and hence gets Dik Bala, or directional strength, when located here.
Astrologers often conclude that it is its best position in the horoscope. The person is career-minded and easily rises to a position of authority in his chosen profession. Fame and popularity are associated with this signature and these yield great power. As Sun aspects the 4th house, there may be difficulties in the relationship with the mother due to this, but wealth is favored and a beneficial relationship with the father, who may be wealthy and prosperous, is also indicated.