Syntax: This segment uses a series of imperative and interrogative sentences. 'Close your eyes, give me your hand' are commands (imperatives) creating intimacy. The questions ('Do you feel...', 'Do you understand...', 'Am I only dreaming') are yes/no questions in the present simple tense, expressing immediate, ongoing doubt and desire for confirmation.
Morphology: 'Beating' is the present participle of 'beat', used here to describe a continuous action. 'Dreaming' is also a present participle, showing an ongoing state. 'Burning' functions as a present participle adjective describing the 'flame'. The '-ing' forms create a sense of active, current experience.

Syntax: 'Say my name' is a simple imperative. 'Sun shines through the rain' is a declarative sentence in the present simple, stating a general truth or metaphor. 'A whole life so lonely' is a noun phrase fragment, effectively conveying a state of being. 'And then come and ease the pain' uses the coordinating conjunction 'and' to link the hopeful event to the painful state.
Morphology: 'Shines' is the third person singular present simple form of 'shine'. 'Lonely' is an adjective derived from the noun 'loneliness'. 'Ease' is a verb in its base form following 'come and'. 'Lose' and 'feeling' are in the infinitive form after 'want to'.

Syntax: Similar syntax to the first segment, but with the addition of the conjunction 'Or' at the start of the final line. This creates a clear alternative question structure: 'Am I only dreaming [Option A] / Or is this burning an eternal flame [Option B]?' This is more forceful than the earlier standalone question.
Morphology: The morphology is consistent with the first segment. The repetition of the '-ing' forms ('beating', 'dreaming', 'burning') reinforces the continuous, present nature of the speaker's experience and questioning.