Revelation and visions were given to prophets like Daniel, David, Moses, Jeremiah, Isaiah, Apostle Paul, John etc, in audio-visual format, but they are expected to deliver the message in audio and text format to the whole world who is obligated to believe.
Where is the wisdom in this? Why can't revelational message be delivered in the same format it was given especially now that we have supportive technologies.
This is how I come to conclusion that the grestest temptation for man is FAITH. John 3:16.
This is why faith is always accompanied with GRACE. Eph. 2:8
Jesus, said if you believe, you will see the glory of God.
Faith literarily involves first seing with the eyes of our other beings before seing with our physical eyes.
For example, seing with soul's eyes (mental insght) involves using past and present record to arrive at logical conclusion to control the future outcome of events.
While seing with spirits eyes comes as a fruit and gift of Holy Spirit.
2Kings 5:26.Elisha said to him, Did not my spirit go with you when the man turned from his chariot to meet you? Was it a time to accept money, garments, olive orchards, vineyards, sheep, oxen, menservants, and maidservants?

History is indeed our friend, hence the following are the people who saw with their soul's eyes:
1.Thomas Edison ( inventor of filament bulb)
2. The woman of Canaan, who obtained dividend of faith without being a lawful partaker.Mt 15: 22-26
3. Blind Bartimaeus Mk.10:46
4. Martin Luther King ("I have a dream", black activist)
5. The Centurion.Mt. 8:8

The following are those who saw with the spirits eyes:
1. The woman with the issue of blood Luke 8:43- 45
2. Abraham, the father of faith
3. Elisha and Gehazi his servant. 2King 6:17
4. Peter ( "Flesh and blood" remark)Math.16:17
5.Anna in Siloh.

Because Faith remains greatest temptation for man, the doctrine of " to whom much is given, to whom much is expected is strictly attached to it"
If you doubt this ask Apostle Paul 2Cor.12:9 and John the Baptist.
Little wonder again why the scripture called anyone who does not believe in God "FOOL", simply because he could not see with his spirit's eyes, soul's eyes and physical eyes.
1king 6:20 And when they had come into Samaria, Elisha said, Lord, open the eyes of these men that they may see. And the Lord opened their eyes, and they saw. Behold, they were in the midst of Samaria!
Anyone who could not see with any of the three level eyes is as good as one without sanity! A blind man should have excuse of not believing God, because he can't see with his physical eyes, but what of his soul's and spirit's eyes, blind Bathemeus shall be a witness against such blind on the day of judgement. Little wonder again it will be very difficult for anyone to have excuse to escape consequence of neglecting the saving grace of the Lord Jesus Christ, because the three form of eyes shall form a cloud of witnesses against such person! Hebrew 12:1
Seing is believing and believing is seing indeed!!!