Interior design is enhancing the interior of a building to achieve a healthier and more aesthetically pleasing environment for the people using the space.I would prefer the decoration using handmade things like crafts,antiques and all.Ones room explains his behaviour.We always need a positive environment arround us.The designing of our space is more important for a positiveness.If you made things by yourself to decorate your house it will be the happiest thing according to me