Question: Past, Present, and Future?
Should we remember our past? Our future no one knows. Only the present is true. Do past and future become irrelevant?
Answer: Engage Them in Krishna's Service
In Krishna consciousness everything is relevant because everything past, present, and future can be engaged in the service of Lord Sri Krishna.
It is good to remember your past in terms of what you did correctly to expand your Krishna consciousness and what you did incorrectly to kill your Krishna consciousness. In this way you will have the proper understanding of what to do and what not to do. You will then be able to successfully manage your present for creating the most wonderful, exciting, and enlivening future of going back to home, back to Godhead for regaining your original, eternal spiritual identity in the wondrous pastimes of Lord Sri Krishna, the Supreme Personality of Godhead.