If we feel as though time is limited we may simply ignore relationships that need healing. If we see ourselves as immortal and working towards global harmony, we see the logic of healing all of our damaged relationships. Another benefit is that we don't need to feel limited in our choice of who we are and how we choose to experience ourselves. Many people with multiple passions feel they have to choose one career or one lover or one geographical region. If we have all the time we need then we can explore and experience these different aspects of ourselves without feeling that we are missing out on some aspect of who we are.
Life is cyclical.
If we die we will simply be reborn and go through many of the same lessons until we get them right. Life often seems challenging and we'd sometimes rather not grow when it gets difficult. However, when we stop growing, we begin to die. We may as well get it right in this life, learning to love others and ourselves. Eventually we will all get it right.