An Astrologer, who only belive in Research. Nobody can change the destiny, by anything, not by Stones or Puja. By astro u can only maintain it. You can only know it. In Shashtra too there is a Shloka ‘ ज्योतिषानाम् वेद: चक्षु अस्तु ‘ , that means astrology is do the work of eye. Only we can see what is in our destiny.