Mars opposite Sun transit presents a challenge you must overcome to achieve a specific goal or be yourself. The energy of Mars has been building up inside, and you need to act to make something happen. Unfortunately, this energy is not balanced; it is hard to contain or express safely.
Anger and frustration are likely as other people stand in your way or directly oppose your will. It is difficult to achieve what you want fully, but you can win if your objectives are noble and not threatening to other people. Otherwise, the opposition you receive will make compromise necessary.
You must choose your battles carefully with the Mars opposite Sun transit; perhaps a tactical retreat is better in the long run. All types of relationships can be strained at the moment, but especially in close love partnerships. Again, compromise and subduing of your ego may be needed to keep this peace. Sex and other physical activity now can relieve the tension, but over-exertion or risk-taking should be avoided.