Dear all
Theemithi is a function, which shows how concentrated the mind is towards the god. Even in some IT companies, they are giving some training exercises to their staffs nowadays with this same theemidhi.
When we concentrate much on one thing and do other things, the effect of the thing which we done will not affect us at all. With this concept to blend with divinity, theemidhi has came. I think normally we (TBs) people dont do these things. But is very common among NBs. Other acts such as walking with nail-sandals, breaking coconuts in heads, etc. all comes under this category.
When people are doing these, all the DK people laughed on them (Pagutharivu). But when the usefulness has been known and now practically followed by IT companies, they keep their mouth shut.
I think the details for this cannot be get from net, as this is usually a village custom. As Kunjuppu sir said, it happens in the month of "Aippasi" Even on "ADI". Mainly for female deities like Mariamman.
Pranams