The Science of Spirituality: What Neuroscience Is Teaching Us About Healing
As both a physician and an integrative health and wellness coach, I have spent years studying what helps people heal. Throughout my medical training and professional career, I have relied on evidence-based medicine, neuroscience, psychology, and lifestyle medicine to better understand the human experience.
Yet recently, I found myself captivated by a different body of scientific research—one that explores an area medicine has often overlooked: spirituality.
I recently listened to two episodes of the Hidden Brain podcast featuring psychologist and researcher Dr. Lisa Miller discussing what she calls the Awakened Brain. What struck me wasn't simply the topic itself, but the scientific rigor behind it. For more than three decades, Dr. Miller has investigated spirituality using MRI brain imaging, longitudinal studies, epidemiologic research, genetic studies, and clinical investigations. Her work has been published in highly respected peer-reviewed journals, including JAMA Psychiatry, helping to establish spirituality not simply as a philosophical or religious concept, but as a measurable aspect of human biology and psychology.
For much of modern medicine, spirituality has been viewed as something separate from science—as if our spiritual lives existed outside the biology of the human brain. Dr. Miller's research challenges that assumption. Just as there are neural networks involved in depression, anxiety, attention, and memory, her research suggests there are also neural circuits associated with spiritual awareness. Remarkably, these neural pathways appear to exist in every human being, regardless of religious tradition or whether someone identifies as spiritual but not religious. Rather than being confined to a particular belief system, the capacity for transcendent awareness appears to be part of what makes us human.
One of the most fascinating aspects of Dr. Miller's work is her finding that while every person appears to be born with an innate capacity for spiritual awareness, that capacity can be strengthened over time.
Just as physical exercise strengthens muscles, practices such as prayer, meditation, time in nature, quiet reflection, acts of service, and participation in meaningful community appear to strengthen the neural networks associated with what she calls the awakened brain. In one of her published studies, individuals who sustained a rich spiritual life over many years demonstrated greater cortical thickness in regions of the brain that are often thinner in people with recurrent major depression. In other words, cultivating our spiritual lives may literally influence the structure of our brains in ways that support resilience and mental health.
Equally compelling is what happens when these neural circuits become active. Dr. Miller describes an experience shared across cultures and faith traditions in which people report feeling deeply loved, held, guided, and connected to something larger than themselves. At the same time, the brain shifts away from its constant internal chatter—the endless cycle of worry, planning, self-criticism, and control—and opens to a broader awareness. Instead of asking, "How do I fix this?" or "What did I do wrong?" a different question begins to emerge: "What is life showing me now?"
As I listened to these conversations, I found myself nodding again and again—not simply because I appreciated the science, but because I recognized my own experience.
Like many physicians, I was trained to solve problems. Medicine teaches us to diagnose, treat, analyze, and control variables whenever possible. These are invaluable skills that save lives every day. But there are moments in life when even the best science cannot remove our suffering. Grief is one of those moments.
When I experienced profound losses in my own life, I eventually reached a place where there were no more problems to solve. No treatment algorithms. No checklists. No five-step recovery plans. There was simply the heartbreaking reality that life had changed forever. Although my scientific training helped me understand the physiology of grief and the effects of chronic stress on the nervous system, it could not fully explain what ultimately became one of the greatest sources of healing in my own journey.
During those difficult years, my relationship with something greater than myself deepened in ways I never expected. Whether we call it God, Spirit, Divine Love, Nature, Universal Wisdom, or simply a profound sense of connection, I gradually discovered that I was no longer carrying everything alone. I experienced moments of feeling held, guided, and supported—not rescued from grief, but strengthened within it. Long before I encountered Dr. Miller's research, I had lived the experience she now describes through neuroscience.
One of the ideas that resonates most deeply with me is Dr. Miller's distinction between what she calls achieving awareness and awakened awareness. Achieving awareness is the part of us that plans, organizes, solves problems, and accomplishes goals. It is essential for success, and physicians become exceptionally skilled at it. Yet achieving awareness alone cannot answer our deepest questions about meaning, purpose, love, or suffering. Awakened awareness invites us into a different relationship with life. Rather than asking only, "What do I want and how do I get it?" it asks, "What is life inviting me to learn? How am I being called to grow? What is emerging that I could not have imagined?" We need both ways of seeing. One helps us create a plan; the other helps us discover our direction.
Looking back, I realize this understanding has profoundly influenced my work as a coach.
I continue to draw upon neuroscience, motivational interviewing, positive psychology, lifestyle medicine, and evidence-based coaching practices. But I have also come to appreciate that healing is not always about doing more or trying harder. Sometimes healing begins when we become quiet enough to listen—to our bodies, to our hearts, to one another, and perhaps to something beyond ourselves.
As a coach, I never tell clients what they should believe. Spirituality is deeply personal, and each person's path is uniquely their own. For some, it is rooted in a faith tradition. For others, it is found in nature, meditation, music, service, relationships, or moments of awe. My role is not to define that path but to create a safe space where people can explore the questions that often arise during life's most difficult seasons with curiosity, openness, and compassion.
Perhaps that is what I find most hopeful about this emerging science. It reminds us that healing is not solely about reducing symptoms or returning to who we once were. It is also about expanding our capacity for hope, connection, meaning, compassion, and resilience. As both a physician and a coach, I find it encouraging that modern neuroscience is beginning to validate something many people have intuitively known for centuries: that nurturing our spiritual lives is not separate from our health. It may be one of the most deeply human—and scientifically supported—pathways toward healing.
Whether your own source of strength comes through faith, nature, meditation, service, community, or quiet moments of reflection, I hope you remain open to the possibility that healing involves more than the mind and body alone. Perhaps, as the science increasingly suggests, our capacity for spiritual connection has been part of us all along—waiting to be awakened.
