Short Answer 
The narrator’s actions of reconditioning the piano and preparing their mother’s belongings are driven by sentimental reasons, reflecting a deep personal connection and emotional attachment. Their intrinsic motivation stems from a desire to honor their mother, indicating that their actions are rooted in personal feelings rather than external pressures.
Step 1: Identify Sentimental Actions
In the passage, the narrator expresses their intention behind reconditioning the piano as driven by sentimental reasons. This indicates that the actions are not motivated by external factors but rather by personal feelings tied to memories. The emphasis on sentimental value highlights the internal source of motivation, which reflects the significance of their experiences and emotions.
Step 2: Acknowledge Personal Connection
The mention of the narrator preparing their mother’s belongings showcases a deep personal connection. They put jewelry in silk pouches and organizes sweaters that they disliked, which signifies emotional attachment. This careful handling of items indicates that the narrator’s efforts stem from a desire to honor their mother rather than a sense of obligation or societal pressure.
Step 3: Recognize the Theme of Intrinsic Motivation
The intrinsic motivation of the narrator becomes evident with the phrase “purely sentimental reasons.” This underlines that the drive to engage with their mother’s memory and to cherish her belongings is a reflection of their inner feelings. Ultimately, this internal motivation highlights how the narrator’s actions are rooted in a personal journey rather than in external expectations or rewards.