Day 1 covers the first half of Chapter 1, Introductory
Having last month met King Ajatasatru and the the four kinds of devotees, we witness the Buddha emit a ray of light from the white curls between his eyebrows illumining all the corners of eighteen thousand worlds in the east.
Thereupon the Buddha emitted a ray of light from the white curls between his eyebrows, and illumined all the corners of eighteen thousand worlds in the east, down to the Avchi Hell of each world, and up to the Akanistha Heaven of each world. The congregation saw from this world the living beings of the six regions of those worlds. They also saw the present Buddhas of those worlds. They also heard the Dharma expounded by those Buddhas. They also saw the bhikṣus, bhikṣunīs, upāsakās and upāsikās of those worlds who had already attained [the various fruits of] enlightenment by their various practices. They also saw the Bodhisattva-mahāsattvas [of those worlds] who were practicing the Way of Bodhisattvas [in various ways] according to the variety of their karmas which they had done in their previous existence, and also according to the variety of their ways of understanding [the Dharma] by faith. They also saw the past Buddhas [of those worlds] who had already entered into Parinirvana. They also saw the stupas of the seven treasures which had been erected to enshrine the śarīras of those Buddhas after their Parinirvana.
Nichiren writes about omens:
Grand Master T’ien-t’ai states in his Profound Meaning of the Lotus Sūtra fascicle 6, “It is said in a secular society that a cobweb is an advance notice of a happy event and chirps of a magpie foretell the arrival of a traveler. Even such trifle matters in the secular world are foreshadowed by an omen, how much more so the advent of the Buddhist Dharma. Based on worldly matters, we can conjecture the profound truth of Buddhism.” Thus, the Buddha showcased the greatest omens that had never been seen during the more than 40 years in His lifetime when He expounded the theoretical section of the Lotus Sūtra.
Zuisō Gosho, Writing on Omens, Writings of Nichiren Shōnin, Volume 6, Followers I, Page 122