RecruitingDevice studyBringing the Outdoors In: Virtual Nature Walks for Depression in Multiple Sclerosis (MS) PatientsThis trial explores the use of immersive virtual reality (VR) nature-based experiences as a supplementary treatment for depression in individuals with progressive multiple sclerosis (MS). This study will evaluate the feasibility and efficacy of at-home VR deployment using the Apple Vision Pro, an advanced device that offers enhanced resolution, immersion, and usability compared to earlier VR systems. The study hypotheses include: * The integration of VR nature-based experiences with standard care will be feasible, acceptable, and will result in greater reductions in depressive symptoms compared to standard care or VR-only interventions. * The integration of VR nature-based experiences with standard care will result in greater reductions in stress and anxiety, better sleep, less insomnia, and improved fatigue compared to standard care alone or VR-only interventions.