Atmosphere of the Land of Israel

Shelah haKadosh, Parshas Veyechi (Free Translation)

In every place where all Jews are united--that place has the avira (atmosphere) of Eretz Yisroel and it is permitted to bring korbanos there [as was done in the desert for forty years]...however the level of Eretz Yisroel itself is such that even if all the Jews are not present but only a small portion, it still has the avira of Eretz Yisroel.