On 14th January every year, during the Makara Sankranti at Sabarimala Temple in Kerala, a mysterious phenomenon takes place. A kind of celestial lighting has been spotted on one particular hilltop. Hindus believe that this is none other than the act of Lord Ayyappan who asserts himself to bless his devotees.
However some state that the celestial lighting is a manmade one. According to one theory, it is said to be the result of forest-dwellers who used to light up a lamp during this day.