Among the many disciples of Śākyamuni Buddha there are ten representative ones known as the “ten great disciples.” Venerable Maudgalyāyana among them was foremost in his supernatural power. He traveled around the entire world preaching without losing even a single strand of his hair. How could he accomplish such a feat? It is said that it was due to his merit in his previous life of listening to Śākyamuni Buddha preaching despite the distance of 1,000 ri (about 5,000 km). Also Chang-an, a disciple of Grand Master T’ien-t’ai, traveled a distance of more than 10,000 ri (about 50,000 km) in order to hear the Grand Master preach the Lotus Sūtra. Grand Master Dengyō traveled to China, more than 3,000 ri (about 15,000 km) away, to study the Great Concentration and Insight. Tripiṭaka Master Hsüan-tsung of China had to overcome a distance of 200,000 ri (about 1,000,000 km) to introduce the Wisdom Sūtra from India.

Doesn’t the distance they traveled show the depth of their aspiration? However, they were all males and incarnations of the Buddha or bodhisattvas. In contrast, you are a woman with five hindrances. As such it is almost impossible for you to be an incarnation of a Buddha or bodhisattva. Yet it is certain that you will attain Buddhahood. I can only imagine the kind of meritorious acts you performed in your previous life.

Oto-gozen no Haha Gosho, A Letter to the Mother of Lady Oto, Writings of Nichiren Shōnin, Followers II, Volume 7, Page 142-143