Day of Gratitude to Teachers (Onshi no Hi)

What Is Onshi no Hi (Day of Gratitude to Teachers)?

Every year on March 24th, Japan observes "Onshi no Hi" — literally the "Day of One's Beloved Teacher." The date was chosen because March is graduation season in Japan, and the number "24" can be read as a wordplay on "on-shi" (on = 2, shi = 4), echoing the word "onshi," meaning a cherished mentor or teacher. This is a day to express gratitude not only to school teachers, but to every mentor, master, or guide who has shaped you at important turning points in your life. It's an opportunity to pause amid the busyness of daily life, look back on past lessons and debts of gratitude, and reconnect with the roots that have shaped who you are today.

The Psychology of Mentorship and Personal Growth

Encountering a great mentor can play a decisive role in a person's development.

• The Pygmalion Effect: Psychological research has shown that when a teacher or mentor believes "this person has potential," the learner's actual performance and abilities tend to improve. Positive evaluation from a respected teacher helps build the foundation of self-esteem.
• The Power of Having a Mentor: Numerous career-development studies point out that people who have a mentor — someone who offers emotional support and points the way forward — tend to show greater resilience when facing difficulties.

The Science of Expressing Gratitude

Putting gratitude into words benefits both the person who gives thanks and the person who receives it.

• Boosting Well-Being: Positive psychology research has found that writing a thank-you letter or message to a teacher who once helped you can increase the sender's own long-term happiness.
• Respect for Education Worldwide: Many countries celebrate their own "Teachers' Day" — in January in Thailand, in May in South Korea, and so on. While the dates differ, honoring those who pass on knowledge is a virtue shared across cultures.

Fun Facts About Teachers and Mentors

• The Meaning Behind "Onshi": The Japanese word "onshi" carries a meaning that goes beyond "teacher" — it implies someone who bestows kindness and blessings upon you. This reflects the Buddhist concept of "shion" (the debt of gratitude owed to one's teacher), which became intertwined with Japan's unique view of education.
• Reunions at Class Gatherings: Years or even decades after graduation, alumni reunions where former teachers and students reconnect often become precious moments to reinterpret old lessons from an adult perspective — and to gain fresh direction for life.
• The Lineage of Great Masters: History shows that great minds have always emerged through dialogue with great teachers — think of Plato learning from Socrates, and Aristotle learning from Plato.
• Words That Last a Lifetime: Even decades after graduation, a single phrase from a beloved teacher can remain a guiding motto that helps someone through life's hardest moments — proof of education's lasting power.
• Mentors Today: The definition of "onshi" has expanded beyond school teachers to include coaches, workplace supervisors, and even experts who share knowledge online.

Ideas for Onshi no Hi

• Quietly reflect on who helped shape who you are today. Picture the face of a mentor who especially influenced you, and consider how their teachings show up in your life now.
• On March 24th, if possible, send a letter, email, or message sharing how you're doing, along with a note of thanks such as, "Your words back then still encourage me today."
• Revisit a book, piece of music, or skill that your mentor once introduced you to. Reconnecting with that early inspiration can refresh your motivation for your current work or studies.
• If you are now a "teacher" or "senior" figure to someone else, practice "onokuri" — passing the kindness forward by offering the same warm encouragement and honest advice your mentor once gave you.

Inherited Wisdom and Encouragement Light Your Eternal Path

March 24th is a day to send timeless gratitude to the people who lit the "lamp of learning" in your life. The words and attitudes you received from your mentors live on within you in new forms, becoming a source of support in hard times and a compass for important decisions. Cherishing the people who guided your past self affirms who you are now and strengthens your resolve for the future. By holding gratitude in your heart, your life's story gains depth — and the rich chain of wisdom continues on to the next generation.