It goes on:

Ideology is the life and soul of socialism.

Powerful military and economic potentials are too incompetent to defend the gains of revolution won by blood if the ideological position is disintegrated.

This is evidenced by the historic lesson of socialist construction.

In the past some socialist countries failed to pay due attention to the ideological work to educate popular masses. They leaned only on economic construction.

As the people in those countries had no worries and led a stable life, their revolutionary enthusiasm was gradually dampened and tried to lead an easy life. They did not want to devote themselves to socialism but started to have illusions about capitalism. In the long run, they betrayed socialism, taken in by the false propaganda of the imperialists and reactionaries. As a result, economic construction fell into stagnation in these countries and finally socialism collapsed and capitalism was restored.

The national defense capabilities described as the most powerful in the world were demolished overnight. Soldiers became blind, unaware of their mission. The army that was disarmed ideologically did not prevent the socialist system from collapsing.

There is nothing impossible in the world if the mental power is enlisted by dint of ideology. This is proved by the practical experience of the Korean revolution which has won victories by dint of ideology.