"I would like that a lot," Kaka said in interview in the December issue of the Italian version of GQ, which was posted on the magazine's Web site on Wednesday. "It's a difficult road - you have to study theology and deepen your study of the Bible."
The deeply religious Kaka nearly always raises both of his arms to the sky after he scores goals.
"An evangelical minister reads the Bible and conveys the duties," Kaka said. "It's not so easy to apply to today's society things that were written thousands of years ago. But that's exactly the job of a minister - to make the teaching of the Bible relevant."
With 10 goals, Kaka was the top scorer last season when Milan won the Champions League. After his team beat Liverpool in the final, Kaka revealed a T-shirt stamped with the words "I belong to Jesus."
Kaka is widely expected to be awarded the Golden Ball as Europe's best player on Sunday. The FIFA World Player of the Year title could also be his on Dec. 17.
"I'm aware that I'm among the best, but I haven't reached (my full potential)," Kaka said. "I can still improve. I'm 25 and therefore I still have room for improvement."
Kaka's wife Caroline is due to give birth to the Brazilian couple's first child in five months.