If you keep a Mandir in your kitchen or leave utensils unwashed until the next day. Follow these simple tips from the science of vaastu and fix the dosh in your house, these rules will bring peace, joy and wealth at your doorstep It is crucial to follow the Vastu rules as we prepare food in the kitchen and instead of only nutrition, the food should also provide positive energy and peace of mind. The ruling planet of kitchen area is Venus and its ruling element is fire.