Once you understand non-self, then the burden of life is gone. You'll be at peace with the world. When we see beyond self, we no longer cling to happiness and we can truly be happy. Learn to let go without struggle, simply let go, to be just as you are - no holding on, no attachment, free.
Whenever we feel that we are definitely right, so much so that we refuse to open up to anything or anybody else, right there we are wrong. It becomes wrong view. When suffering arises, where does it arise from? The cause is wrong view, the fruit of that being suffering. If it was right view it wouldn't cause suffering.
Try to be mindful, and let things take their natural course. Then your mind will become still in any surroundings, like a clear forest pool. All kinds of wonderful, rare animals will come to drink at the pool, and you will clearly see the nature of all things. You will see many strange and wonderful things come and go, but you will be still. This is the happiness of the Buddha.
You say that you are too busy to meditate. Do you have time to breathe? Meditation is your breath. Why do you have time to breathe but not to meditate? Breathing is something vital to peoples lives. If you see that Dhamma practice is vital to your life, then you will feel that breathing and practising the Dhamma are equally important.
Do not try to become anything. Do not make yourself into anything. Do not be a meditator. Do not become enlightened. When you sit, let it be. What you walk, let it be. Grasp at nothing. Resist nothing.
Don't think that only sitting with the eyes closed is practice. If you do think this way, then quickly change your thinking. Steady practice is keeping mindful in every posture, whether sitting, walking, standing or lying down. When coming out of sitting, don't think that you're coming out of meditation, but that you are only changing postures. If you reflect in this way, you will have peace. Wherever you are, you will have this attitude of practice with you constantly. You will have a steady awareness within yourself.
Meditation is like a single log of wood. Insight and investigation are one end of the log; calm and concentration are the other end. If you lift up the whole log, both sides come up at once. Which is concentration and which is insight? Just this mind.
Do not be a bodhisattva, do not be an arahant, do not be anything at all. If you are a bodhisattva, you will suffer, if you are an arahant, you will suffer, if you are anything at all, you will suffer.
Learn to see that it is not things that bother us, that we go out to bother them. See the world as a mirror. It is all a reflection of the mind. When you know this, you can grow in every moment, and every experience reveals truth and brings understanding.
To observe and watch one's own mind is something really interesting. The untrained mind will run and follow its old habit patterns. Because it has not been trained and taught, it will get lost in all kinds of stories and issues. Therefore we have to train our mind. The meditation practice in Buddhism is all about training one's own mind.
Do not be in a hurry or try to push your practice. If you become peaceful, then accept it,; if you don’t become peaceful, then accept that also. This is the nature of the mind. We must find our own practice and persevere.