Happiness is a state of mind that everyone desires, but is often unattainable. We may think that happiness depends on external factors such as relationships, achievements, possessions, and circumstances. However, these factors are not always within our control and can change unexpectedly.

If you measure your happiness, you may feel disappointed, frustrated, or depressed. A more reliable and sustainable way to create happiness is to cultivate it from within. This means being reasonable, self-help, and not dependent on others or external circumstances. Being rational means using reason and logic to evaluate your thoughts, beliefs, and expectations. We can challenge the negative or irrational aspects that cause us sadness and replace them with more positive and realistic aspects that promote happiness.

Self-help means taking responsibility for your own well-being and doing things that make you feel good. We can get into the habit of being grateful for what we have instead of complaining about what we lack. We can engage in activities that bring us joy, meaning and purpose, such as hobbies, learning, volunteering and helping others.

You can also keep yourself physically and mentally healthy by eating well, exercising regularly, getting enough sleep, and asking for help when you need it. By being rational and self-help, we can create our own happiness from within. We become more resilient and adaptable to the changes and challenges that life throws at us. It also allows you to better enjoy the positive aspects of life and share your happiness with others.

One of the sources of inspiration for this approach to happiness is the ancient Hindu scripture, the Bhagavad Gita, which contains the dialogue between Lord Krishna and Arjuna on the battlefield of Kurukshetra. The Bhagavad Gita offers much insight and wisdom on how to live a happy and fulfilling life in harmony with yourself and the world.

One of the Bhagavad Gita's quotes related to happiness is:

"You are entitled to perform your assigned duties, but you are not entitled to the fruits of your actions.  Never consider yourself to be the cause of the consequences."

- Bhagavad Gita, Chapter 2, Verse 47

This quote teaches us that happiness depends on the quality of our actions, not on the results of our actions. We are not obsessed with results or rewards, and we carry out our duties with integrity and integrity. Also, laziness and laziness lead to stagnation and misery and should be avoided.

By not obsessing over the outcome and doing our best in any situation, we can achieve a state of peace and well-being independent of external factors.