" ...if to an extent smaller than a needle’s eye the glory of that station were to be unveiled to mankind, every beholder would be consumed away in his longing to attain it."

"Estimating the station of the true believer He remarks: “By the sorrows which afflict the beauty of the All-Glorious! Such is the station ordained for the true believer that if to an extent smaller than a needle’s eye the glory of that station were to be unveiled to mankind, every beholder would be consumed away in his longing to attain it. For this reason it hath been decreed that in this earthly life the full measure of the glory of his own station should remain concealed from the eyes of such a believer.” “If the veil be lifted,” He similarly affirms, “and the full glory of the station of those who have turned wholly towards God, and in their love for Him renounced the world, be made manifest, the entire creation would be dumbfounded.”

Bahá’u’lláh cited by Shoghi Effendi

(The World Order of Bahá’u’lláh)
www.bahai.org/r/699306799