"Symbiosis of Heart & Soul" is Nate McCallum's fifth poetry book, which takes readers through a transformative journey of personal growth and evolution. The book is divided into four sections, each representing a stage of maturing and growing up as a person: sadness, anger, healing, and symbiosis. Through a collection of raw and honest poems, McCallum offers a powerful insight into the complexities of the human experience, drawing from a year and a half of his own experiences. This book follows the success of his last book "Losing Grip," published in March 2022, and showcases McCallum's prowess as a poet and his ability to capture the essence of the human spirit.