"Though here the linga of Visvesvara is removed and another is brought in its place by human beings, owing to the times, the pilgrims must worship whatever linga is in this place. Sometimes, owing to the action of tyrannical Mleccha rulers, there may be no linga in that place. In that case circumambulation, namaskara and other forms of salutation must be made to the spot only. By that action the fruit of the pilgrimage is attained. The abhiseka, etc., which can only be done (to the linga) can of course not be done."
January 1, 1970
https://en.wikiquote.org/wiki/Kashi_Vishwanath_Temple