The Bab’s first visit to Tabriz created “an intense excitement on the part of the populace”

His [the Prime Minister’s] orders to ‘Alí Khán, the warden of the fortress of Máh-Kú, were stringent and explicit. On His way to that fortress the Báb passed a number of days in Tabríz, days that were marked by such an intense excitement on the part of the populace that, except for a few persons, neither the public nor His followers were allowed to meet Him. As He was escorted through the streets of the city the shout of “Alláh-u-Akbar” resounded on every side. So great, indeed, became the clamor that the town crier was ordered to warn the inhabitants that any one who ventured to seek the Báb’s presence would forfeit all his possessions and be imprisoned. 

- Shoghi Effendi  (Chapter 2, ‘God Passes By’)

The results of the Báb’s isolation and incarceration in Ádhirbáyján

And yet, the foolish and short-sighted Hájí Mírzá Áqásí [Persia’s Prime Minister] fondly imagined that by confounding the plan of the Báb to meet the Sháh face to face in the capital, and by relegating Him to the farthest corner of the realm, he had stifled the Movement at its birth, and would soon conclusively triumph over its Founder. Little did he imagine that the very isolation he was forcing upon his Prisoner would enable Him to evolve the System designed to incarnate the soul of His Faith, and would afford Him the opportunity of safeguarding it from disintegration and schism, and of proclaiming formally and unreservedly His mission. Little did he imagine that this very confinement would induce that Prisoner’s exasperated disciples and companions to cast off the shackles of an antiquated theology, and precipitate happenings that would call forth from them a prowess, a courage, a self-renunciation unexampled in their country’s history. Little did he imagine that by this very act he would be instrumental in fulfilling the authentic tradition ascribed to the Prophet of Islám regarding the inevitability of that which should come to pass in Ádhirbáyján. Untaught by the example of the governor of Shíráz, who, with fear and trembling, had, at the first taste of God’s avenging wrath, fled ignominiously and relaxed his hold on his Captive, the Grand Vizir of Muhammad Sháh was, in his turn, through the orders he had issued, storing up for himself severe and inevitable disappointment, and paving the way for his own ultimate downfall. 

- Shoghi Effendi  (Chapter 2, ‘God Passes By’)

Features of the concluding years of the Báb’s Ministry

These concluding years of His [the Báb’s] earthly life will go down in history as the time when the new Dispensation attained its full stature, when the claim of its Founder was fully and publicly asserted, when its laws were formulated, when the Covenant of its Author was firmly established, when its independence was proclaimed, and when the heroism of its champions blazed forth in immortal glory. For it was during these intensely dramatic, fate-laden years that the full implications of the station of the Báb were disclosed to His disciples, and formally announced by Him in the capital of Ádhirbáyján, in the presence of the Heir to the Throne; that the Persian Bayán, the repository of the laws ordained by the Báb, was revealed; that the time and character of the Dispensation of “the One Whom God will make manifest” were unmistakably determined; that the Conference of Badasht proclaimed the annulment of the old order; and that the great conflagrations of Mázindarán, of Nayríz and of Zanján were kindled. 

- Shoghi Effendi  (Chapter 2, ‘God Passes By’)

Three locations in Persia – the circumstances they provided

Shíráz had been the memorable scene of the Báb’s historic Declaration; Isfáhán had provided Him, however briefly, with a haven of relative peace and security; whilst Ádhirbáyján was destined to become the theatre of His agony and martyrdom. 

- Shoghi Effendi  (Chapter 2, ‘God Passes By’)