Those preachers that were addressing to the people could criticise the state as they wish and could cause a rebellion.
When he was young, he tried to enroll to a tariqa, but as he found out that he objected to their thinking, he decided to become a preacher.
As his rhetoric was strong, he became famous in a short time and was designated to the Hagia Sophia Mosque as a preacher in 1631, where he pointed to disorders in state affairs.
He moved the public against sects that he decided to be contrary to Shariah.
The Kadızades caused the decline in Ottoman education system, and science became conservative.