The most frequent modern parallel to Jesus' shining white Transfiguration robe is the mass phenomenon of Muslims all over the world being converted to Christianity through visions of Jesus, often in a shiny white robe:
All over the world, Muslims are having dreams and visions of Jesus. These men and women often find him appearing to them in a shining white robe. The encounters are often so powerful that they produce a newfound interest in Jesus. As these Muslims dig deeper and learn what the Bible has to say...
www.worldviewsummit.org
Strikingly, these visions and dreams don't reinforce the Quran's teachings about Jesus; instead, they convince Muslims that Jesus is indeed the Son of God, often through what the Jesus of these visions says and the intense love He communicates empathically.
Daren, Carlson, "When Muslims Dream of Jesus:"
"In 2007, Dudley Woodberry and others published a study that recounted interviews with 750 former Muslims who had converted to evangelical Christianity. Many of the reasons they gave for their conversion would be expected—the love of God, a changing view of the Bible, and an attraction to Christians who loved others. But one reason might come as a surprise: the experience of a dream they believed to be from God. These study results aren’t isolated.
Mission Frontiers magazine has reported that out of 600 Muslim converts, 25 percent experienced a dream that led to their conversion. The great missionary Lillias Trotter also reported dreams that drove Muslims to Christ.'
I will share just 2 personal experiences of exposure to Muslim visions of Jesus:
(1) Rev. BR was a missionary to Ethiopia who gave his report in my parents' Kelowna church. Ahmed was dying of AIDS in a hospital in Addis ABABA. A young missionary couple, associates of BR, were doing hospital visitation ministry. When they entered Ahmed's room, he was too sick to move or speak. So they just prayed for a healing touch in Jesus' name. Ahmed was a Muslim mullah at the time and would later say he wanted to kill them for praying over him in Jesus' name, but he was too sick to respond. After the prayer Jesus entered his room clad in white and laid hands on him and his health suddenly began to improve. He rang for the nurse and told her there was a man in his room and asked her to search under his bed. She reassured him that he had no visitors.
Jesus' healing touch didn't him completely, but just enough to gain release from the hospital. His sudden improvement changed his attitude towards the couple and he sought them out. They laid hands on him again and prayed, and this time he was completely healed of AIDS. The healing set his heart on fire for Jesus and he spent much of his time in the city square, witnessing to Jesus--so much time that he neglected his marriage and his wife divorced him not because of his conversion, but because he neglected his marriage. Rev. BR counseled him on the need for balance in his life.
(2) When I was a UMC minister, we hosted the Uganda children's choir from an African orphanage. Most of them had been abused by their parents; so we were told by their chaperons not to ask them questions. One of their chaperons was a convert from Islam who had experienced a vision of Jesus.