Key

Success or failure at certain points cannot determine one's happiness.

Whether happy or unhappy does not lie in success or failure per se.

Unhappiness is due to a mind, which is discouraged and retreats in the face of failure.

Unhappiness is owning to a state of mind, which is dependent on the state of success or failure.

Real happiness, therefore, rests on an attitude or vitality, which is undefeated, invincible and even further invigorated in front of any failures.

For being absolutely happy, unceasing, flourishing and boundless vigor is a key.