HOMER GLEN, Ill. (WGN) -- A church in Homer Glen is drawing pilgrims from across Chicagoland to witness what some are calling a miracle.

An icon of St. John the Baptist has been oozing fragrant oil since last summer at Assumption Greek Orthodox Church. Parishioners believer the oil to be myrrh.

So far, no one has offered proof that it's a sign from God, but no one has proven that it isn't.

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It could be simply a chemical reaction, but some true believers say the oil has healing properties.

The painter of the icon, Peter Mihalopoulos, told the Chicago Tribune he believed the oil was the reason why he was in his garage painting two days after a hip replacement.

Church leaders say if the phenomenon draws people toward God then it's a good thing.

Orthodox Christians celebrate Easter in two days.