Every moment, every memory of your life is a blink of existence. Memories are imperfect, unreliable at times, but any which way you perceive them, they still mean something to you, however broad or little. It's understandable to want to reminisce about the past, to relish in it for a little while, however, stay too long, and won't be able to create vivid memories in the present like before. It's okay to blink, it's okay to move forward.