I'm not sure specifically which 'lean back true story' you are referring to. There could be many stories with this title or related to this concept. It could be about someone's experience of relaxing or reclining in a particular situation and what ensued from that. Maybe it's a personal anecdote about taking a break and reflecting on life events.
Since I don't know the specific 'lean back true story', I can't give exact details. However, generally, in a 'lean back' story, details might include the setting where the 'lean back' moment occurred, like a cozy living room or a peaceful park bench. It could also involve the emotions the person was feeling at that time, whether it was relief, boredom, or anticipation of what might come next while in that relaxed state.