Spiritual strength means
Conversations and Morning Walks
1975 Conversations and Morning Walks
Prabhupāda: Yes. In the material world, goodness is prone to be contaminated. In the spiritual world, the other two qualities, they are not existing. So there is no question of contamination. Here all men are covered by these two base qualities, all men and animal, everyone, passion and ignorance. Therefore, first of all, they have to be brought to the platform of goodness. And if they can keep goodness uncontaminated, they are transferred to the spiritual world.
Devotee (1): Just like you say. Some of the devotees, they fall down although they're striving to be in the mode of goodness. If they're sincere, they still fall down?
Prabhupāda: If they are sincere, how they can fall down? They are not sincere; therefore they fall down.
Amogha: Madhudviṣa Swami was telling us once that sincerity must be combined with spiritual strength.Prabhupāda: Yes. Spiritual strength means sincerity and sincerity means spiritual strength. If I promise before the fire, before the Deity, before my spiritual master that "I shall observe the rules and regulation," and if I don't follow, then where is my sincerity?