Here is a really good interpretation of a BOWL pattern:
The two planets at the lips or rim of the Bowl may or may not be opposed; if they are, their opposition is known as the “rim opposition.” Both the presence of a rim opposition and a T-square strengthen a Bowl. The more exact the rim opposition, the stronger is the Bowl pattern’s influence in your character. If your rim opposition is wide (say more than 8° from exact), or there is no reinforcing T-square in the Bowl, the Bowl Pattern in your chart may not be extremely definitive of your character or compelling in its nature. But it is still present.
If you have a Bowl chart you are probably very self-contained and often have a mission, cause or advocacy in life, which manifests either as dedication to an ideal, or more onerously as a cross to bear. You often base your sense of self-worth upon a significant contribution that you’ve made to life that others have valued and acknowledged; if you haven’t already done this, it is probably a necessary and important step for you. You function best in crisis situations, where, according to Marc Jones, you have “an ability to hold steadfast under strain.” Be aware, however, that your reliable steadfastness doesn’t turn into intractability. You’re also a whole-hogger, putting your heart and soul into the enterprises you take on.
Bowl Pattern individuals tend to seek balance and harmony with your environment, perhaps to compensate for the polarity between the occupied and unoccupied halves of your charts. The occupied half of your chart symbolizes what you have to give to the world, and the unoccupied portion what you, consciously or unconsciously, feel you lack.
http://www.myastrologybook.com/Bowl-planetary-pattern-astrology.htm