Presented here is the Revised 4th Edition of Vibrational Raindrop Technique! What began in 2011 as a small project in tribute to the genius of Dr. D. Gary Young has developed a robust life of its own, ever growing all over the planet. It now includes three different frequency systems of tuning forks: the original Planetary plus the expanded Sacred Solfeggio, and finally a Pythagorean system. The Planetary frequencies, the Sacred Solfeggio frequencies and the Pythagorean frequencies form a trinity of a whole system. The Sacred Solfeggio frequencies work on the Microcosmic, personal level and can take us to the inner universe deep within ourselves. With the linking frequencies of the Pythagorean (Mesocosmic) frequencies, they assist us to connect to the Macrocosmic level of the Planetary frequencies, which guide us to find our place in the outer universe. The Planetary frequencies, the Sacred Solfeggio frequencies and the Pythagorean frequencies form a trinity of a whole system. The Sacred Solfeggio frequencies work on the Microcosmic, personal level and can take us to the inner universe deep within ourselves. With the linking frequencies of the Pythagorean (Mesocosmic) frequencies, they assist us to connect to the Macrocosmic level of the Planetary frequencies, which guide us to find our place in the outer universe. Additionally, there is an introduction to the world of Raindrop Harmonics which brings other vibrational healing tools to this technique: crystals and gemstones; color light; auricular technique, chakras, and more!