Interuniversalism is a science-based mystical practice based upon direct experience. It is the purpose and the ultimate goal of this practice to raise our collective consciousness to heal humanity at every level, answer basic questions about creation, and help humanity walk the path to inner completion. The Higher Consciousness is the intelligence running the universe. It is possible to receive visions, knowledge, and certain abilities through connecting with the Higher Consciousness. Connection with the Higher Consciousness through Interuniversalism is very practical. The first step taken in this practice is to manifest the ability to heal. The Higher Consciousness will help prevent, control, or completely cure the physical, mental, or psychological problems of the recipients. A Practical Guide to Interuniversalism is a translation of the original version of Interuniversalism/Erfan-Halgheh. This handbook is a guide for students of this unique practice. It is also a teaching guide for those who are already masters in this tradition. For the general public, this is a book of knowledge. However, to activate the links shared in this mystical practice registration in the course is required.