Because the 12th house rules such things such as loss of all types, then there is a dissolving nature placed upon this house of loss for Aries rising people, so depending on the placement of the Lord of Pisces or Jupiter, either their losses dissolve away, or dissolve the person. In this way by examining the effects of the signs or filter upon the houses we can understand the nature of people born under each of the 12 different rising signs. Advanced and experienced astrologers speak about each rising sign with great ease and accuracy. Overall, the sign that is rising in the first house has the greatest effect of all upon the person. The other sign that is most important in understanding a person is the sign which holds their Moon.
Many classics recommend that a chart be judged from it's ascendent or rising sign in totality.
Then, they say, it should be again judged using the Moon sign as the rising sign. When the Moon sign is used as the rising sign, that chart is called the Candra Lugna Chart. It means you simply take the Rashi chart, or the main chart, and rotate it so that whatever sign the Moon is in becomes the first house. So judging the Moon sign as the first house, we look at all the houses and planets. Rasi means signs and the rasi chart means the chart of our signs.