Today is the second day of the Higan week,  the three days before the equinox and the three days after. As explained in a Nichiren Shu brochure:

For Buddhists, this period is not just one characterized by days with almost equal portions of light and dark. Rather, it is a period in which we strive to consciously reflect upon ourselves and our deeds.

The today we consider the Perfection of Morality. This essay was generated by Google’s Gemini Notebook and then edited for publication here. The essay is derived from the 400 or so letters written by Nichiren uploaded as source material for the Nichiren Notebook.

In the teachings of Nichiren Shōnin, morality is not a set of rigid, static rules or abstract theories, but a dynamic and practical guide for daily behavior grounded in the ultimate truth of the Lotus Sutra. To understand morality in this tradition, one must look at how the secular virtues serve as a foundation for Buddhist practice, how daily conduct serves as the direct expression of your inherent Buddha-nature, and how the traditional rules of discipline are transformed in the Latter Day of the Dharma.

Secular Virtues as the Essential Foundation
For Nichiren, secular morality and humanistic codes are the starting point of a virtuous life. Before the introduction of Buddhism, ancient sages in China utilized the five constant virtues—benevolence, righteousness, propriety, wisdom, and good faith—to govern and bring order to society. The Buddha utilized these humanistic virtues to prepare the minds of the people, paving the way for the five Buddhist precepts.

Nichiren explains that those who are earnest in secular morality are already aligned with the spirit of the precepts:

• Filial Piety: Approaching parents with absolute respect, never showing anger, and ensuring their physical and spiritual care.
• Loyalty: Serving your lord or vocation with a clean conscience and a willing heart.
• Courtesy: Greeting friends and colleagues with warmth and respect, never showing indifference.
• Kindness: Treating those whose circumstances are inferior to your own with the same pity and compassion you would show to your own children.

Upholding these four secular virtues makes a person worthy to be called a human being; without them, a person lives on the level of beasts.

The Supreme Value of the ‘Treasures of the Heart’
In advising his samurai disciples, such as Shijō Kingo, Nichiren establishes a clear moral hierarchy regarding what constitutes true wealth and success. He writes that while worldly possessions represent “treasures in a storehouse,” and physical well-being constitutes “treasures of the body,” “the treasures of the heart are the most valuable of all.”

A healthy body or vast estate means nothing if your mind is impure. True moral development requires you to consistently strive to accumulate these inner treasures of faith, integrity, and character in your daily life.

“Buddhism is Found in Daily Behavior”
The very peak of moral action in Nichiren Buddhism is the realization that Buddhism does not exist separate from daily conduct. In the Sushun Tennō Gosho (The Emperor Sushun Letter), Nichiren states:

“What is called Buddhism is found in this behavior.”

The teachings instruct you to exercise extreme caution, prudence, and self-restraint, mimicking the great sages of old who reconsidered their words nine times before speaking. Ultimately, the true purpose of Śākyamuni Buddha’s appearance in this world was to teach people how to behave properly on a daily basis.

This is perfectly modeled by Bodhisattva Never Disparaging (Fukyō Bodhisatsu), who bowed to every person he met out of profound respect for their inherent Buddha-nature, even when they retaliated by cursing him and beating him with sticks and stones. Thus, true moral behavior is treating every person with the dignity that is due to a future Buddha.

The Precept of the Diamond Chalice
In traditional, gradual Buddhism, practitioners were required to strictly observe complex, separate sets of vows (such as the five, eight, ten, 250, or 500 precepts) to avoid falling into the lower realms. However, Nichiren teaches that in the Latter Day of the Dharma (mappō), when the three poisons of greed, anger, and ignorance are rampant, trying to divide your focus among these ancient rules is like trying to cross a stormy sea in a tiny, fragile boat.

Instead, the Lotus Sutra offers the “precept of the diamond chalice.” By simply accepting and chanting the five characters of Myō-hō-ren-ge-kyō, you naturally receive the complete benefits of all the precepts and causal practices ever completed by Śākyamuni Buddha.

Once a practitioner embraces this wonderful precept of the Lotus Sutra, it cannot be broken, even if one tries. It is like a golden vessel that never loses its precious value even if chipped or structurally altered, whereas the traditional Hinayana precepts are like fragile clay vessels that are rendered entirely useless once broken.

Repaying the Four Debts of Gratitude
An upright moral life is actively fueled by a sense of deep gratitude. Nichiren stresses that practitioners must understand and work to repay the four debts of gratitude: the debts owed to parents, to the sovereign or nation, to all living beings, and to the Three Treasures.

Filial piety toward parents is given paramount importance. Nichiren warns that while secular or non-Buddhist moral codes can assist parents’ physical bodies in this life, only the Lotus Sutra possesses the spiritual power to truly save their souls and lead them to Buddhahood in future existences.

Tomorrow: Active Patience in Nichiren Buddhism