The world is revolving on its own axis and it goes round the sun, the galaxy which has the solar system is itself going round with other galaxies round an unknown axis and this Yantra is the ultimate of all created by God. And another yantra offered to you by astrologers are not going to have any effect on your future except that they will become rich over a period of time. Astrology can only be used as Road Signs which warns you about in advance of possible hurdles and you can be careful to avoid any possible calamities to some extent. Forewarned is forearmed, the saying goes. Destiny is something which cannot be changed except by the Creator and what best you can do is dedicate yourself of all your actions at the feet of the God. And He will then be responsible for all such actions in your life.
They would have got the same results even without a yantra installed in their premises. Our life is well charted and embedded into our DNA at the time we are born. Kundli is a tool to evaluate it and know before hand our success factor in life. Read navagrahastro.blogspot.in