Lapis Lazuli boosts the immune system, purifies blood, lowers blood pressure, cooling and soothing areas of inflammation. It alleviates insomnia and vertigo, and overcomes depression. Obelisks amplify energy and focus it through the apex. They help to attain mental, physical, and emotional balance. It is thought that obelisks help dissipate negative energy, making it a useful shape for locations like the workplace, or any room in which there may be stress or conflict.