Feng shui is, first and foremost, energy work (acupuncture of the space). Feng shui opens up powerful energy channels in your home to help it get stronger, more harmonious and powerful. This, in turns, nourishes and strengthens your own energy (can be compared to quantum physics, everything is endless energy fields connecting everything you see, feel and touch).
If your space has good feng shui vibes - healthy, uplifting, loving and nourishing, you will feel supported and happy. Everything will flow easier for you just because this is the energy you are surrounded by and nourished most often.