Vaastu Shastra is as real and powerful as Astrology if not less. You can even check its credibility yourself.
If your washroom is constructed in the North-East corner of the house, you can observe that the prosperity and health of the family members will suffer. OR,
If you’re married, you can experiment by placing a thorny plant in your bedroom. You’ll notice that within a couple of days, your relation with your spouse will start deteriorating. There will be more arguments and/or fights than usual.
Many people think that Vaastu is all about directions. They believe that if their house is built properly as per the concept of directions, it’s Vaastu compliant. But it’s not correct. The things placed inside the house also play an important role which is evident from the 2nd example.