Between 1747 and 1763, due to disagreement between the Bulgarian and Serbian monks there, he settled in the Pantokrator Monastery, with his spiritual father, the hermit Paisius Velichkovsky.
[2] Spiridon Gabrovski used the library of the monastery to supplement his knowledge and in 1792 he managed to complete a "Short history of the Bulgarian Slavic people".
[3] The book contains a wealth of factual material freely used by Father Spiridon.
Spiridon approached the so-called Illyrism, which declares the ancient Illyrians, to be early Slavs.
Spiridon tried to legitimize the Bulgarians ("Illyrians") through Alexander the Great, presented entirely in a positive light.