Auspicious double 8's at the back of the home in Flying Star Feng Shui (Xuan Kong Fei Xing) Posted April 8, 2009 · Report reply Is there any solution? Since my house hastwo storey. Can I activate the star on the second floor? Like placingfountain on the second floor? Should the rock for mountain activation be placed on the first floor or on the second floor? Thank you for your reply.