Search for "Marth" and the results lean toward a swordsman from the Fire Emblem video game franchise, developed by Intelligent Systems and owned by Nintendo. The subject of this profile is a different figure: Martha Castro, a meditation and mindfulness teacher based in the San Diego and Tijuana area, who teaches under the name Marth and through her initiative Meditate With Martha. Her work is quieter than a fantasy hero's, but it speaks to a need many people recognize: the wish to be more present in their own lives.
Castro's hometown is listed as San Diego, and she remains rooted in the region, working across the San Diego and Tijuana area. That border geography suits a teacher whose work is about connection and about meeting people where they are. Beyond that, the public record says little about her early life, and this profile will not guess at what it leaves out.
What is documented is her formation as a practitioner and thinker. Her background combines Vajrayana Buddhism, grief counseling, and the study of arts and literature. This unusual mix shapes the way she teaches. Contemplative practice, close attention to human loss, and a literary sensibility rarely appear together in one teacher, and each seems to inform the others.
For more than fifteen years, Castro has practiced closely with her root teacher, Lama Lhanang Rinpoche, a Tibetan master of the Nyingma tradition. In Tibetan Buddhism, the root teacher is the one with whom a student has the deepest and most formative bond, the person through whom the teachings become lived experience rather than information. Nyingma is the oldest of the major schools of Tibetan Buddhism, and it is closely associated with Vajrayana practice.
A relationship sustained over that many years is itself part of her story. It suggests a teacher who built her authority slowly, through long study and practice, rather than through quick credentials. Her public work today draws on that steady foundation.
The record does not point to a single dramatic turning point, such as a crisis or a sudden awakening. It is more accurate to say that her path appears to have developed through the accumulation of practice, her training in grief counseling, and sustained time with her teacher. Readers who want a conversion story will not find one here, and that restraint is arguably part of the work's character.
Castro's central contribution is translation, in the best sense of the word. She takes a deep contemplative tradition and renders it into forms that people in ordinary circumstances can use. Her stated aim is to help people learn "the art of living in the present moment" and to enjoy life "with simplicity and grace."
The range of people she works with shows how far that translation reaches. She collaborates with universities, elementary schools, businesses, wellness centers, and individuals. Those settings have very different needs: the pressures of academic life, the developing attention of children, the demands of the workplace, and the private questions of someone seeking guidance one-on-one. Teaching across all of them takes flexibility and a clear sense of what is essential in the practice.
Her grief counseling background adds another dimension. Meditation is often marketed as a tool for calm or productivity, but a teacher who has sat with people through loss tends to understand it differently, as a way of staying present with what is difficult rather than escaping it. That orientation gives her teaching a seriousness that sets it apart from more casual approaches to mindfulness.
Her current chapter centers on Meditate With Martha, described as a new initiative whose goal is to make guided meditation as accessible as possible. Group sessions are transmitted online, so participants can learn from her years of experience and "sit with the energy of a group" without leaving home.
The format is simple and clearly considered. A typical class opens with a guided meditation of 15 to 20 minutes, leaves room for comments and questions, and closes with another short meditation. The structure respects both halves of learning to meditate: the silent experience itself and the conversation that helps make sense of it. Allowing space for questions matters especially for beginners, who often have doubts about whether they are "doing it right" and benefit from hearing that others share them.
The online delivery also removes barriers that keep many people away from meditation: travel, schedules, the self-consciousness of walking into an unfamiliar room. For a teacher working across a border region and a wide range of institutions, a digital group is a natural extension of her reach.
Castro's audience extends beyond her immediate community. Her Spotify following stands at roughly 131,100, a sign that many listeners turn to her voice for guidance. For a meditation teacher, that kind of audience is meaningful in a particular way. Listeners are inviting someone into private moments: a difficult morning, a sleepless night, a pause in a crowded day.
Her significance lies in the combination she represents. She is grounded in a rigorous Tibetan lineage, informed by the realities of grief, and committed to making practice approachable without diluting it. At a time when mindfulness is often reduced to a slogan, teachers who carry the depth of a living tradition into everyday settings offer something valuable. They remind us that attention is not just a technique for efficiency but a way of being with one's own life.
Meditate With Martha is still new, and its full shape is yet to emerge. What the available record shows is a teacher at a point of expansion, taking more than fifteen years of practice with Lama Lhanang Rinpoche and bringing it to a wider circle of people, one guided session at a time. Her work does not rely on spectacle. It asks people to slow down, breathe, and notice, and that may be the most lasting thing a teacher can offer.