The concept of success is defined as cooperating with the opponent to meet a just end that the opponent is unwittingly obstructing. The opponent must be converted, at least as far as to stop obstructing the just end, for this cooperation to take place.
The main concept of Satyagraha sees ends and means are inseparable. The means also used to obtain an end are also wrapped up in and attached at the end. So it is contradictory to try and use unjust means to obtain justice or to try and use violence to get peace.
Satyagraha versus Duragraha
The main spirit of Satyagraha is that it looks to get rid of antagonism without actually harming the antagonists themselves, as opposed to violent resistance that is meant to cause harm to antagonists. Therefore, a Satyagrahi does not look to seek to destroy or end the relationship with antagonists, instead looks to seek to transform or purify it to higher level. It is seen that euphemism is often used for Satyagraha and is actually a "silent force" or a "soul force". It also arms the helps to arm the individual with moral power rather than physical power. Satyagraha is also termed as "Universal Force" as it essentially makes no distinction between stranger and kinsmen, old and young, woman and man, foe and friend.
Mahatma actually contrasted Satyagraha (holding on to truth) with the Duragraha (holding on by force), as in protest means more to disturb and harass than explain to opponents.
Non-Cooperation and Civil disobedience as practised under Satyagraha are based on the "Law of Suffering", a principle that the survival of misery is a way to finish. Usually, this end implies an ethical upliftment or improvement of a personality or culture. So, in fact, non-cooperation in Satyagraha is a way to secure the collaboration of the adversary steadily with reality and fairness.