5. Regret and longing for what could have been: Loss can bring about feelings of regret for missed opportunities or unfulfilled aspirations. This regret can create a sense of nostalgia for the possibilities and potential that the past held. It is the longing for what could have been if those changes or losses had not occurred. In summary, change and loss disrupt familiar patterns, affect personal identities, sever emotional attachments, and can lead to idealizing the past or longing for missed opportunities. These factors contribute to the creation of nostalgia as a way to cope with and make sense of the impact that change and loss have on individuals' lives.