a. The 'I' in the stanza is a father. The child he's talking about is his son. b. The father uses 'this child' rather than 'my child' to emphasize the emotional distance and estrangement he feels from his son. Despite their biological relation, he feels disconnected from him, as if he were a stranger or an outsider. c. The father feels that he knows nothing of his son because of a lack of emotional connection or understanding. Despite living in the same house for many years, they haven't been able to form a meaningful bond. This might be due to different interests, generational gaps, a lack of effective communication, or other interpersonal issues. d. The father could indeed be trying to recollect his son's childhood in an attempt to see things from his son's perspective. By doing so, he might hope to better understand his son's experiences and emotions, thereby improving their relationship. This effort reflects the father's desperation to bridge the gap between them, showing his willingness to empathize with his son and reconnect with him on a deeper level.