Pluto is the final generational planet. It spends so long in a sign that it affects everyone born within a twelve-year period near the time of your birth. All by itself, it is not the most important feature of your chart, since such a huge number of people share this placement.
However it does describe some general conditions that were activated during that period, and to a certain extent, you and those of your generation carry that energy forward with you as you mature and develop. Pluto is all about power, and the Pluto sign of anyone in power shows how they will wield this important responsibility. The Pluto-in-Libra generation (from 1972 to 1984) were born into a period when a lot of people were getting divorced. This imprint has left you and your peers with the idea that relationships often don't work out very easily. Although you readily understand that the arena of relationships is one in which you can accomplish a lot of personal growth, part of you hesitates to go there, knowing how hard it will be. Yet in the deepest parts of your soul, you yearn for an authentic relationship, one in which you can truly be yourself.