It is easy for people not to look for their own selves on this topic, but yes history has recorded the times when this was applicable to the Bab and Baha'u'llah. It is only recent history, so it is fair and just to assume it's accuracy. At the same time we have to appreciate that Islam was doing all it could to silence these events. That is their shame and really a great loss for all humanity.
Here are a few of eye witness accounts, but there are many.
3 x Eyewitness Accounts
This was Mirza Aqa Jan, who later became Baha’u’llah’s scribe, detailed one experience which took place in Karbila, Iraq, while Baha’u’llah, reciting revelatory verses, paced at night on the roof of a house:
"Methinks, with every step He took and every word He uttered thousands of oceans of light surged before my face, and thousands of worlds of incomparable splendor were unveiled to my eyes, and thousands of suns blazed their light upon me!… Every time He approached me He … would say: “… This Cause will assuredly be made manifest …” –
Shoghi Effendi,
God Passes By, p. 116.
Now Mirza Haydar Ali who became a preeminent early
Baha’i, recalled:
"The verses of God were being revealed and the words streamed forth as in a copious rain. Methought the door, the wall, the carpet, the ceiling, the floor and the air were all perfumed and illumined … To which worlds I was transported and in what state I was, no one who has not experienced such as this can ever know. –
The Revelation of Baha’u’llah (volume one), p. 29.
Tarazu’llah Samandari, another preeminent Baha’i who lived from 1875 to 1968, described how these words were written:
"The Holy Word revealed from the heaven of the Will of the All-Merciful first descends upon the pure and radiant heart of the Manifestation of God and then is spoken by Him… I had the great privilege of being present on two occasions when Tablets were being revealed. The holy words were flowing from His lips as He paced up and down the room, and His amanuensis [scribe] was recording them … –
The Revelation of Baha’u’llah (volume one), p. 36-37.
Regards Tony