Brennen’s guiding principle is that therapy is a collaborative process, with patient and therapist working together toward a shared goal. He views each patient as a unique individual with distinct needs and concerns, offering weekly support and guidance tailored to their well-being. His approach is grounded in empathy, authenticity, and unconditional positive regard, core values that help create a foundation of trust and psychological safety. Brennen draws from various evidence-based models, including cognitive behavioral, psychodynamic, and solution-focused therapies, adapting his interventions to meet each person’s needs.