In February 2011, Brooklyn Vegan did an interview with Deafheaven frontman George Clarke - only a year after the formation of his band, more than two years before their world-devouring Sunbather, still two months before the release of their debut LP, Roads To Judah. The interview included a word-association segment, and when presented with the word "Burzum," Clarke responded: "The blueprint."
I’m not sure "blueprint" was the word he was looking for - it’s definitely not the word I would use to connect Burzum and Deafheaven. I’d probably go with "primogenitor" or "forebear" (which would have been both an apt word choice and a hilarious reference, although not for another two years). Burzum was clearly a huge influence on Deafheaven the same way Hill Street Blues was an influence on The Wire: The early ancestors provided not so much a blueprint as an entirely new genus which evolved for decades before being adopted and adapted by these particular descendants. When Varg Vikernes took on the Burzum handle in 1991, shoegaze was at its cultural apex in England, but it was not part of the vocabulary of Norwegian metal bands.