The land of TUNGUZIJA both exists and does not exist. For the south slavic people, it is a land of those who have no land. A fictional figment. However, it was a former region of the USSR, now the same land is roughly known as Evenkija. 

For the people of USSR it was a factual country, in fact there is an ethnic group of tangusk people. Yet, Tanguzija, as a bureaucratic region does not exist anymore.

What is a fictional land of proverbs is currently a non-factual region. 

By choosing to send something to TANGUZIJA we send in into a paradox. Into a land existed as pure fiction and as pure facts.

TANGUZIJA, just like every other geopolitical classification, only exists as much as we want it to exist.