Indonesian cleric Halim Ambiya talks to a group of street youth in South Tangerang, on the outskirts of Jakarta, Indonesia, April 12, 2021. Picture taken April 12, 2021. His programme, Tasawuf Underground, has helped more than 120 people since it was launched in 2016, with all of its students recruited from the streets. "Tasawuf" or "Tasawwuf" is the Arabic term for Sufism, a mystical form of Islam. REUTERS/Tommy Ardiansyah

Student of 'Tasawuf Underground' Islamic boarding school walks down the stairs to prepare for Koran reading in South Tangerang, on the outskirts of Jakarta, Indonesia, April 10, 2021. Picture taken April 10, 2021. His programme, Tasawuf Underground, has helped more than 120 people since it was launched in 2016, with all of its students recruited from the streets. "Tasawuf" or "Tasawwuf" is the Arabic term for Sufism, a mystical form of Islam. REUTERS/Ajeng Dinar Ulfiana

Eboy Maulana Yusuf, 37, learns how to use a laptop at 'Tasawuf Underground' Islamic boarding school in South Tangerang, on the outskirts of Jakarta, Indonesia, April 10, 2021. Picture taken April 10, 2021. At least 30 former street youths are now studying at Tasawuf Underground, where they learn how to pray, read and write, study the Koran and get vocational training. Halim has opened a laundry and fabric-printing business in the same building to help with the students' income. REUTERS/Ajeng Dinar Ulfiana

Students read Koran at 'Tasawuf Underground' Islamic boarding school in South Tangerang, on the outskirts of Jakarta, Indonesia, April 10, 2021. Picture taken April 10, 2021. At least 30 former street youths are now studying at Tasawuf Underground, where they learn how to pray, read and write, study the Koran and get vocational training. Halim has opened a laundry and fabric-printing business in the same building to help with the students' income. REUTERS/Ajeng Dinar Ulfiana

Tattooed hand hold Koran at 'Tasawuf Underground' Islamic boarding school in South Tangerang, on the outskirts of Jakarta, Indonesia, April 10, 2021. Picture taken April 10, 2021. At least 30 former street youths are now studying at Tasawuf Underground, where they learn how to pray, read and write, study the Koran and get vocational training. Halim has opened a laundry and fabric-printing business in the same building to help with the students' income. REUTERS/Ajeng Dinar Ulfiana

Students learn to read Koran at 'Tasawuf Underground' Islamic boarding school in South Tangerang, on the outskirts of Jakarta, Indonesia, April 10, 2021. Picture taken April 10, 2021. At least 30 former street youths are now studying at Tasawuf Underground, where they learn how to pray, read and write, study the Koran and get vocational training. Halim has opened a laundry and fabric-printing business in the same building to help with the students' income. REUTERS/Ajeng Dinar Ulfiana