There is a lot of difference between a meaningful life and a happy life. Many times there are things that are meaningful in life but not enjoyable; Such as: working hard, keeping the promise despite inconvenience, accepting your mistakes, forgiving the mistakes of others, etc. It must be clear that happiness is important to gain meaningfulness in life, but not an essential component.
There are essentially some positive and some negative emotions and mental states in every person's life. Love, affection, happiness etc. are positive and negative mental states like fear, anger, anxiety, stress etc. All these emotions and states act as a motivator in a person's life. Many of our behaviors are the result of these mental states.
As much as positive mental states are important, so is negative states. If a person wants to take the exam and he is not worried about his studies at all, then his reward will not be good. Surely it is necessary to be concerned. You will get worried only then you will get meaningful results. Similarly, stress also motivates us to move forward to achieve the goal. We are afraid of falling, so we handle it.
To stagger forward it is also necessary to stumble or fall. We are afraid of diseases, so adopt protective measures. We are sad or angry with some evils of the society, so we are able to make meaningful improvements in the society. The most important here is the quantity of these motivators so that excellent work-results and life-goals can be achieved because we all know that excessive anxiety, stress, fear, anger etc. leads to mental imbalance.
Since ancient times, there has been a belief that happiness is desirable in life, it is desirable, and it is also true, but to live a good life is not only to be happy but also happiness - sorrow, joy - pain, love - Along with conflict, living in the form of who we really are is a good life. All types of emotions are essential aspects of our lives.
If we only remain happy at all times, then it means that we are living our life by sacrificing the possibilities of improvement in our life, struggle for our beliefs and engagement in the most important efforts of our life.
Sometimes harsh experiences are also necessary in life. It is from failure that a person learns to work twice as hard. Experiencing failure in life and coping with it is also very important. The person who moves forward only after experiencing the success, whenever he is facing failure, he gets very frustrated. There are many terrible consequences of such disappointment. Therefore, life should be balanced.
Thanks for your attention.