Mars conjunct Sun transit gives a tremendous increase in ego drive, a strong urge to get what you want regardless of what other people think. You are much more self-assertive than usual, which could cause arguments or conflict with others because of your desire to win at all costs. You can achieve much if you channel it constructively. Physical activity is especially favored, so competing hard to win in a team or individual contest is ideal for expressing this fiery energy.
Winning in any area of life and achieving your goals will go well so long as you remember you do not have to destroy others off the sporting field. An excellent example of this Mars conjunct Sun transit dynamic is with physical love relationships. Sex is a great way to express this energy as your sex drive is heightened, and this can be most rewarding for both of you so long as that aggression is channeled into a passion.
The Mars conjunct Sun transit lasts about two weeks in each decan unless Mars is retrograde. Then, it can last up to three months.