According to Osho, rebellion is an individual, nonviolent flowering of love, silence, and understanding—'for' a new man, not 'against' society. It is meditation for the future, creative action from awareness. By contrast, reaction—embodied in organized revolution—is anger-driven, against-oriented, violent, and simply mirrors the past it opposes. The rebellious person acts consciously; the revolutionary merely reacts, repeating the same patterns.
Rebellion calmly creates something new from love and awareness, while reaction angrily fights the old and turns you into what you oppose.