To study Buddhism, first of all we must know the right time.

In the past, the Great Universal Wisdom Buddha appeared in the world, but he did not preach at all for as long as ten small kalpa. It is said in the Lotus Sūtra, chapter 7 on “The Parable of a Magic City”: “He sat in meditation for ten small kalpa;” and “Though begged to preach, the Buddha sat in silence because He knew the time was not yet ripe.” Our Lord Śākyamuni Buddha, did not expound the Lotus Sūtra for more than forty years. As said in the Sūtra, chapter 2 on “Expedients,” it was because “the time was not ripe.” Lao-tzu is said to have spent as long as eighty years in his mother’s womb before he was born. Bodhisattva Maitreya, future Lord Buddha of this Sahā World, is expected to stay in the inner chamber of the Tuṣita Heaven (Tōsotsu-ten) for as long as 5,670,000,000 years, waiting for the time to attain perfect enlightenment. As nightingales wait for summer to sing and roosters wait for dawn to crow, even beasts know the time. How much more should we choose the right time in practicing Buddhism?

Senji-shō, Selecting the Right time: A Tract by Nichiren, the Buddha’s Disciple, Writings of Nichiren Shōnin, Doctrine 1, Page 188