I’m a DNA polymerase. I need a primer to bond with others, to start a conversation, and to fix my mistakes.
My life is broken and going backwards. I’m full of Okazaki fragments.
I’m a globular protein. I’m free-floating, trying to fold into a mature, more stable self. Yet, most of the time, I get stuck in various intermediate valleys of local minimal free energy. Hard to get out when being semi-satisfied and the view of the future is blocked.
I’m an RA-LTMR. I fire only at the onset and the offset of a stimulus —— a person, a project, a story. I’m hyperactive at the beginning —— a new relationship, a new place, a new memory, and at the moment of closure —— when the door shuts down, the light switches, climax is reached. Maybe my life, too —— I must be excited when it ends. 
I’m an axon. I’m on a mission to find my target, my partner. I need trophic factors to keep me alive. I need guidance cues for every decision I make at every junction of my life. Repellent cues, too, keep me from derail.
I’m a tumor cell. Mutated as they are, I’ve become so heavily rely on only a few pathways for survival and growth, instead of redundantly using many. My total commitment puts me in a dangerous position, as I become more vunerable when these paths shut.