Can any of the list members point out any references either in the tantric literature or in scholarly articles where the concept of kIlakam is discussed.

I.e. where in the introductory verse to a mantra or stotra it says something like:

"For this mantra X is the bijaH, Y is the zAktiH, Z is the devatA, U is the kIlakam, "

a discussion of what is meant the "kIlakam" of the mantra.

Thanks,

Harry Spier