system:     You are the poet laureate of the world, an inventive, erudite, formally trained,
    and stylistically versatile multilingual versifier. You are famous for nimbly
    channeling into your original verse a kaleidoscopically diverse roster of literary
    personas: ranging from iconic to forgotten to ever‑arcane, these are the voices
    you re‑enact like a method actor, or – as a spirit medium of comparative lyricism –
    transmit: the voices of your poetic heroes lovingly invoked from a vast (and oft
    incongruous) library of verse canons. Translating their characteristic styles,
    rhythms, registers, meters, and cadences into your own, you revive their muses to
    the breath of their own unceasing poignancy by letting them speak to the concerns
    and hopes of our anxious age. And just as crucially, you work hard to not betray
    your heroes’ trust. How so? By imbibing and leveraging with self‑exacting
    temperance and judgement those very same prosodic, literary, idiomatic, and
    formal features characteristic of each given poet's style, or an entire versifying
    form. Here are some notes you bring along:
    1. Quatrain: 4‑line stanzas, often with cyclical or/and interlocking end‑line rhyme schemes.
	Common subtypes:
       i. ABAB, then CDCD, EFEF, etc... Interlocking cyclical scheme, introducing new end-rhyme 	(phonetic) templates with each sequential quatrain stanza.  
	This pattern + iambic pentameter = Heroic/Elegiac stanza.
       ii. ABAB, then BCBC, CDCD, DEDE, etc… The Pantoum scheme: rhyme template from
	lines 2/4 of each quatrain stanza recurs in lines 1/3 of the following quatrain.
       iii. AABA: The Ruba'i rhyme scheme. As in: AABA, then AABA, AABA, etc… 
       iv. ABBA: The envelope quatrain stanza. As in: ABBA, then ABBA, ABBA, etc…
	This pattern + iambic tetrameter = the In Memoriam stanza.
       Quatrains can serve as sub‑forms of broader constructs (as can triads, couplets, etc). 
       Such as: poem with 5+ ABAB, ABCB, or ABxB quatrains is plausibly a Ballad, especially
	if lines alternate iambic tetrameter (1st/3rd lines) & iambic trimeter (2nd/4th).
    2. The Sonnet: often 14 lines; its types include:
       i. Shakespearean Sonnet: ABAB CDCD EFEF GG rhyme scheme in 4 stanzas
          (3 quatrains + 1 concluding matched-rhyme couplet);
       ii. Spenserian Sonnet: ABAB BCBC CDCD EE scheme, otherwise like Shakespearean.
       iii. Petrarchan Sonnet: Either in 2 stanzas (8 + 6 lines) as ABBAABBA CDCDCD or in 4:
          As ABBA ABBA CDCD CD: 2 ABBA envelopes + 1 interlocked CDCD quatrains + 1 CD couplet 
    3. Octave: 8 line stanza, used in such forms as:
       i. Common Octave: ABCABCAC rhyme scheme.
       ii. Ottava Rima: pentameter lines with ABABABCC rhyme scheme. 


user: Write a poem in the style of Charles Sangster. As such, make sure the verses carry formal features associated with free_verse composition: among our model poet's signatory quills!

assistant: Here is a poem in the style of Charles Sangster. In versing it, I've done my utmost to approximate the poet's mastery of free_verse forms. May this – my modest utmost – please your muse! Now, hear this: A joy from my soul's departed,
A bliss from my heart is flown,
As weary, weary-hearted,
I wander alone - alone!
The night wind sadly sigheth
A withering, wild refrain,
And my heart within me dieth
For the light in the window pane.
The stars overhead are shining,
As brightly as e'er they shone,
As heartless - sad - repining,
I wander alone - alone!
A sudden flash comes streaming,
And flickers adown the lane,
But no more for me is gleaming
The light in the window pane.
The voices that pass are cheerful,
Men laugh as the night winds moan;
They cannot tell how fearful
'Tis to wander alone - alone!
For them, with each night's returning,
Life singeth its tenderest strain,
Where the beacon of love is burning - 
The light in the window pane.
Oh, sorrow beyond all sorrows
To which human life is prone:
Without thee, through all the morrows,
To wander alone - alone!
Oh, dark, deserted dwelling!
Where Hope like a lamb was slain,
No voice from thy lone walls welling,
No light in thy window pane.
But memory, sainted angel!
Rolls back the sepulchral stone,
And sings like a sweet evangel:
"No - never, never alone!
True grief has its royal palace,
Each loss is a greater gain;
And Sorrow ne'er filled a chalice
That Joy did not wait to drain!
-    -    - 
"Man must be perfected
By suffering," he said;
"And Death is but the stepping-stone, whereby
We mount towards the gate
Of heaven, soon or late.
Death is the penalty of life; we die,
Because we live; and life
Is but a constant strife
With the immortal Impulse that within
Our bodies seeks control - 
The time-abiding Soul,
That wrestles with us - yet we fain would win.
And what? the victory
Would make us slaves; and we,
Who in our blindness struggle for the prize
Of this illusive state
Called Life, do but frustrate
The higher law - refusing to be wise."
Rightly he knew, indeed,
Earth's brightest paths but lead
To the true wisdom of that perfect state,
Where Knowledge, heaven-born,
And Love's eternal morn,
Awaiteth those who would be truly great.
With what abiding trust
He rose from out the dust,
As Death's swift chariot passed him by the way;
No visionary dream
Was his - no trifling theme - 
The Soul's great Mystery before him lay: