Mañjuśrī! A Bodhisattva-mahāsattva who keeps this Sūtra of the Lotus Flower of the Wonderful Dharma in the latter days after [my extinction] when the teachings are about to be destroyed, should have great loving-kindness towards laymen and monks, and great compassion towards those who are not Bodhisattvas. He should think: ‘They do not know that the Tathāgata expounded expedient teachings according to the capacities of all living beings. They do not hear, know or notice it, or ask a question about it or believe or understand it. Although they do not ask a question about this sūtra, or believe or understand it, I will lead them and cause them, wherever they may be, to understand the Dharma by my supernatural powers and by the power of my wisdom when I attain Anuttara-samyak-saṃbodhi.

The Buddha gives this explanation to Mañjuśrī Bodhisattva in Chapter Fourteen of the Lotus Sūtra. Until we reach enlightenment, we may not be able to reach all beings. Rather than blaming them for not having the capacity to learn from us, or blaming ourselves for not being skillful enough to reach them, the Buddha reminds us to be patient and realize there is no hurry to being free from our delusions.