I don't see any question so I can't help you. Sorry
Answer:
The author uses Pivotal Words to reference ideas and metaphors about the heart. For example, the word "neither" (Alternative word) is used to describe it as not red nor sweet, two characteristics often related to a loving heart.
Explanation:
The reference to melting or breaking a heart appears as the cause of not being able to feel pain through the word "so" (Cause and effect word).
"Still" (Contrast and change words) is used to establish a contrast between the mute heart and its powerful beat. In the same way, the word "but" is used to set a contrast between what the heart wants and the impossibility of letting it free.
The last line uses "now", a time word, and "too", an Additive word to describe offering one´s heart.
In this sentence the infinitive ("to eat") is being used as an adjective, since it is modifying the word "apple--thus giving us more information about the object itself.
