It's better motivation concept @javybar. I read completely opinions as you mentioned. Invest in ourselves. Improve ourselves compared to each previous second of our life. Acquire some qualities which will be with us forever. At first don’t believe that we cant. Because subconsciously this belief of our I can't is somehow letting we not to move on. See our life in a bigger frame, don’t just dwindle our life around a person who was there with we just for few moments in our life. Because life in itself is a collection of moments and we are still to explore the best moments of our life.