A boundary visualization is a visualization you do to help protect yourself from manipulation, negativity, and assault. The easiest and most effective boundary visualization you can do is to simply visualize a ball of light around your body, your children, your family, your home, and anything else you want to protect. Make this ball bright, powerful, and impenetrable, but also, and this is important, don’t totally block yourself off. Visualize arrows of light getting in, but see darts of darkness bouncing off. Depending on your situation, you should do boundary visualizations before you go to sleep at night, when you wake up in the morning, and throughout the day as required.
Be careful, these work. You will notice that negative energies and negative people slowly dissipate out of your when you use this visualization.