Study aim: Determining the effect of in-person and virtual Dignity Therapy on the quality of life and life satisfaction of patients with heart failure Design: A controlled clinical trial, non-randomized, conducted on 90 patients. Settings and conduct: The present study is a clinical trial with two intervention groups and one control group, using a convenience sampling method. The target population consists of 90 patients with class II, III, or IV heart failure who are referred to Imam Khomeini Hospital Complex, affiliated with Tehran University of Medical Sciences. The Dignity Therapy protocol will be implemented in three sessions for the intervention groups. A four-part questionnaire including demographic information, the Chronic Heart Failure Quality of Life Questionnaire (CHFQOLQ-20), the Satisfaction With Life Scale (SWLS), and the Generalized Anxiety Disorder 7-item scale (GAD-7) will be completed by participants in all three groups at two time points: before the intervention and one month after the intervention. Participants/Inclusion and exclusion criteria: Inclusion Criteria: Diagnosis of heart failure by a specialist physician Mental health stability and absence of psychological disorders according to the medical record Ability to use a smartphone and access to the internet Exclusion Criteria: Deterioration of the patient's health condition Participation in educational or therapeutic sessions similar to the intervention Intervention groups: The control group receives monitoring and the routine treatments and care provided by the center. In addition to this, the in-person intervention group receives Dignity Therapy through face-to-face sessions, and the virtual intervention group receives Dignity Therapy via video calls. Main outcome variables: Quality of life; Life satisfaction