Tannhäuser Gate is only the most enigmatic reference of the best scene of the best movie in the universe, and I never heard of any mind altering substance called Tannhae that you were admitting to use (are you a Can-D user or a Chew-Z user? [1]), so I assumed it must be a Blade Runner reference! But now I understand it's a direct reference to what Roy Batty may have been indirectly and allegorically referencing, which is quite un-disappointing. ;)

[1] https://en.wikipedia.org/wiki/The_Three_Stigmata_of_Palmer_E...