The Emperor entered the Edo-jo Castle which was the symbol of the bakufu, and this was a symbolic event for the Emperor was demonstrating that the entire imperial country was to be unified; the east and west to be identified as one, then the Emperor declared that he would control all administration by his decision.
幕府のシンボルであった江戸城に天皇が入ることで、天皇が皇国一体・東西同視のもと自ら政を決することを宣言するデモンストレーションともなった。