Mars in 8th House synastry relationships are remarkably dynamic in nature and are usually formed between people in business, science, as well as in various intellectual fields. Less common examples include intelligence and secret services. If Mars is negatively affected, conspiracies and intrigues are woven into the partners’ relationship as they do not show any mercy and even expose each other to real danger.
The dynamism of this synastry is explained by the fact that Scorpio’s presence is naturally implied in the Eighth House. Thus, according to Scorpio’s fundamental principles, the Mars in 8th House synastry partners stimulate each other to self-improvement and regeneration of opportunities, which allows them to successfully overcome difficulties and solve the karmic tasks as long as they choose to collaborate and help one another.
from F. Sakoyan, L. Ecker
Mars in 8th House Synastry Explained
Mars in 8th House synastry partners have the rare knack of razzing you beyond belief even with their most innocent actions. If this is your child, you will feel it even before his birth (and maybe even before conception), and as the child grows up, s(he) will come up with more new ways to infuriate you; although you will, of course, learn to adapt, or just get used to it.
Usually, the activity of a Mars in Eighth House synastry partner increases sharply whenever you find yourself in a difficult situation: either on the material plane or on the psychological one. If this is a man, he may perceive himself as a sort of ambulance for you, but this does not mean that his efforts will be adequate or that he at least will not hurt you.
To work out this synastry properly, the partner must understand how acutely (including psychologically) you react to their actions, and learn to help you where you really need it, and in a form acceptable to you. Then they can help you overcome seemingly inaccessible and troublesome impasses.
Mars in 8th House synastry often gives very intense energy interactions. And, in case of careless behavior, (including ethical violations by one of the partners) it threatens to degrade the relationship to the level of gross scandals, squabbles, and scenes of jealousy, accompanied by a mutual loss of energy potential, that is, negative meditations, during which both partners lose energy to one or another demon from the subtle world.
Working out this synastry, however, gives a powerful alliance that represents a formidable force in the outside world – but here the common ethics of your couple egregor, whose existence we and our partners, including the most beloved ones, should never forget, is a limiting factor still.
from A. Podvodny