What does the poet mean by "forgotten place"?

The poet concludes that he cannot ascertain or pinpoint the moment of his loss of childhood but he can conjecture that it must have gone to a forgotten place. A place where all the relics of our past go, a darkness that engulfs them and leaves a little bewildered as we continue to progress in life. The poet says that it is probably hidden in the face of that infant which he has ceased to be, so from the very moment of our birth we began to lose the innocence and wide-eyed wonder with which we view life. Every moment since then marks the loss of our childhood and that's all we know. Life is made up of moments, incidents, events, these are eruptions on the placid timeline of our life which can be gathered up into one congruous existence but the moments that one remembers are markers of our memory and experience. We live our lives through them, each moment marking a growth.