Can nostalgia help provoke positive memories that benefit a person psychologically? Is this true? What studies have been done?

In the Postgraduate Program in Emotional Education and Well-being at the University of Barcelona, managed by the GROP (Research Group in Psychopedagogical Guidance), we focus on experiencing positive emotions such as love, joy, enthusiasm, gratitude, well-being, and fulfillment. Sometimes we bring up situations from the past where these emotions were felt, not to relive them through nostalgia, but to positively revisit them and analyze what we can do to repeat them. The focus is not on dwelling on the past, nor on nostalgia itself, but on opening pathways to a future guided by conscious well-being.