Guerrillas must establish implicit connections or bonds with people and countryside.

In other words

Guerrillas must be able to blend into the emotional-cultural-intellectual environment of people until they become one with the people.

In this sense

People feelings and thoughts must be guerrilla feeling and thoughts while guerrilla feelings and thoughts become people feelings and thoughts; people aspirations must be guerrilla aspirations while guerrilla aspirations become people aspirations; people goals must be guerrilla goals while guerrilla goals become people goals.

Result

Guerrillas become indistinguishable from people while government is isolated from people.