The idea of satyagraha emphasised the power of truth and the need to search for truth. It suggested that if the cause was true, if the struggle was against injustice, then the physical force was not necessary to fight the oppressor. Without seeking vengeance or being aggressive, a satyagrahi could win the battle through nonviolence. This could be done by appealing to the conscience of the oppressor. People – including the oppressors – had to be persuaded to see the truth, instead of being forced to accept truth through the use of violence. By this struggle, the truth was bound to triumph ultimately. Mahatma Gandhi believed that this dharma of non-violence could unite all Indians.