The ten parables preached in the “Medicine King Bodhisattva” chapter of the Lotus Sūtra seem to compare the relative merits of the Lotus Sūtra against all other Buddhist scriptures, though this is not the true intent of Śākyamuni Buddha. In actuality, what the Buddha is preaching is that when we compare the practicer of the Lotus Sūtra against the practicer of all other scriptures of Buddhism, the former is like the sun and moon while the latter is like stars and lights.
How do we know this? We know this because of the most important statement in the eighth parable: “Likewise, one who is able to uphold this sūtra is the most superior of all living beings.” These 22 Chinese characters are the foremost essence of the entire Lotus Sūtra. They are the eyes of all living beings. This scriptural statement means, “The practicer of the Lotus Sūtra is like the Sun Deity, Moon Deity, King of the Brahma Heaven, and a Buddha while the practicer of the Great Sun Buddha Sūtra is like a star, river and an ordinary being.”
Therefore, anyone in this world, male or female, laity or clergy, who upholds the Lotus Sūtra will be regarded by the Buddha to be the lord of all living beings and revered by the King of the Brahma Heaven and Indra. When I think of this, my joy is beyond expression.
Shijō Kingo-dono Nyōbō Gohenji, A Reply to the Wife of Lord Shijō Kingo, Writings of Nichiren Shōnin, Volume 7, Followers II, Pages 120-121