What is Happiness? Three Rules for Attainment: Self-Acceptance, Intentionality, and Change

Every year on International Day of Happiness, the world pauses to reflect on a powerful truth: happiness is not a luxury; it is a fundamental human goal. The day was established by the United Nations to emphasize that human well-being and happiness should be central to social progress and public policy. The current chaos of the world has shed light on the importance of happiness, which seems like a fleeting dream. 

This year’s theme, “Caring and Sharing,” reminds us that happiness is mutual commitment enhanced through compassion, connection, and community. Acts of kindness and collaboration strengthen relationships and improve collective well-being. 

But while happiness is nurtured in community, it begins within the individual. Philosophers and psychologists alike have argued that happiness is not merely a fleeting emotion; it is a way of living. In many ways, happiness is as essential to a fulfilled life as breathing air is to the body.

So, what exactly is happiness, and how can we cultivate it? Consider these three guiding principles:

1. Self-Acceptance: The Foundation of Happiness

One of the greatest obstacles to happiness is the constant attempt to become someone else that others will accept. Adlerian psychology teaches that every person carries feelings of inferiority at times. However, these feelings are not weaknesses, but rather opportunities to grow. Happiness begins when individuals stop defining themselves by comparison and instead accept themselves as they are while striving to improve who they can become.

Self-acceptance does not mean complacency. Rather, it means acknowledging both strengths and limitations without shame. When people embrace their authentic selves, they experience:

• Greater emotional resilience
• Reduced anxiety and self-criticism
• A stronger sense of identity
• More meaningful relationships

According to the Adlerian perspective, freedom emerges when individuals stop living for the approval of others and begin living according to their own values. True happiness starts when we say, “I am enough, and I am still becoming.”

2. Intentionality: Happiness is a Choice

Many people wait for happiness to arrive through external circumstances such as success, relationships, recognition, or wealth. Yet Adler argued that happiness is not something we stumble upon. It is something we actively create.

Intentional living means making conscious choices about how we think, behave, and engage with the world.

In The Courage to Be Happy, Kishimi and Koga emphasize that people possess the power to decide how they interpret their experiences. Even in difficult circumstances, individuals can choose courage, meaning, and contribution.

Intentional happiness includes:

• Practicing gratitude
• Engaging in meaningful work
• Building supportive relationships
• Serving something larger than oneself

This aligns beautifully with the “Caring and Sharing” theme of the International Day of Happiness. Happiness deepens when we move beyond self-absorption and intentionally contribute to the well-being of others.

Simply put, happiness grows when we live on purpose.

3. Change: The Courage to Grow

Perhaps the most powerful idea from Adlerian psychology is this: people are not prisoners of their past.

Many individuals believe their happiness is limited by childhood experiences, trauma, or previous failures. Adler challenged this belief, arguing that people are capable of choosing a new direction for their lives at any moment. Kishimi and Koga call this “the courage to change.”

Change requires:

• Letting go of limiting narratives
• Taking responsibility for one’s choices
• Embracing growth over comfort

Happiness often lies on the other side of courage, the courage to forgive, to pursue purpose, to set boundaries, or to redefine one’s life story. Growth is not always comfortable, but it is essential. Without change, life becomes stagnant. With change, life becomes meaningful.

Five practical everyday actions to find your Happiness:

1. Practice Compassionate Self-Talk (Self-Acceptance)

• Replace “I failed” with “I’m learning.”
• Acknowledge effort rather than perfection.
• Recognize that mistakes are part of growth.

2. Start Each Day with a Clear Intention (Intentionality)

• Set a daily intention such as “Today I will respond with patience.”
• Identify one meaningful goal for the day.
• Choose behaviors that align with personal values.

3. Contribute to Others in Small Ways (Intentionality + Self-Acceptance)

• Offer encouragement to a colleague
• Check in on a friend
• Express gratitude to someone who helped you

4. Reframe Challenges as Opportunities for Growth (Change)

Instead of asking: “Why is this happening to me?”

Try asking:

• “What can this situation teach me?”
• “How can I grow from this?”

5. Take One Small Step Toward Change Each Week (Change)

• Trying a new habit that supports well-being
• Setting a boundary in a relationship
• Pursuing a personal or professional goal long postponed

A Daily Practice of Happiness

Happiness is not a destination that we reach once and keep forever. It is a daily practice rooted in accepting ourselves, living intentionally, and embracing the courage to change.

When people consistently apply these principles in everyday life, they cultivate not only personal well-being but also stronger relationships and healthier communities.

For those who want to explore these ideas more deeply, one of the most insightful modern interpretations of Adlerian philosophy can be found in the book The Courage to Be Happy by Fumitake Koga and Ichiro Kishimi. 

This International Day of Happiness, take a moment to reflect on a simple truth:

Happiness is not something we wait for.  It is something we practice.