Feng shui on what is a "20 BaYao"?

Geomantic go up to twenty BaYao, as one of the ten strategics, nine songs about dragons, 28 hole, sand and water requirement: dragon to grow, and ups and downs;Pulse to thin, hole to hide, dragon come to true, bureau of matter;Hall to Ming and flat;Sand to Ming, water coagulation;Mountain to ring, let the waters around;Dragon want to sleep, tiger is lower;Case is close, water static;YaoGuan before the room to god and to pillow, clip on both sides as;Water will bite, nozzle to block;Hole to hide the wind, and want to get together gas,The g8 don't lack, luo don't diarrhea;Mountain is no concave, water or return jump;Hall bureau to geometric, higher up the mountain.Pulse to thin, refers to the place of knot acupuncture point, dragon vein when the shape of strip in measures surmounted the old evil;Hole to hide, to hide the wind;Matter, was said bureau when;Sand to Ming, it is to point to from the guard also when moist yangming mountain, not a dark evil wet;Water to coagulate, to quiet, to the water when the calm, clear not rushing turbidity;Dragon want to sleep, it is said "zuoshangyi tsing lung not soft training;Before former officer after god "refers to the officer, a ghost after two stars that fit;Pillow music clip according to of the mountain of acupuncture point when there is joy after Joe thought pillow depend, on both sides and the ear of the mountain of thought HuCong;The g8 is eight party;Return to jump, it is said the water back against retrograde.