After coronation of Sugreev, Lord Rama selected a cave to reside at the top of prasravangiri hill. He explained to Laxman about the cave
Pragudakpravane deshe guha sadhu bhavishyati l
Pashchachchaivounnata soumya nivateyam bhavishyati ll
(Valmiki Ramayan, Kishkindha kaand 27.12)
Dear here south-east corner is lower and south-west corner is higher, so this is very appropriate to reside.
It means even Lord Rama believed in vastu shastra. A suitable vastu place can help to achieve not only happiness, prosperity, health but also glory, reputation and popularity. And an inappropriate vastu may gives opposite result like unhappiness, ill health, financial crisis, notoriety etc. If you feel these things please, get checked up your home, work place, any property you posses or you want to acquire.
You may consult Bhaskarachary, who is renown for his knowledge of vastu and have written books like Vastu Rahasya, Vastu Vigyan, at this blog or may call 9922577667/ 9969321547.