The cause of happiness and the solution to our problems do not lie in knowledge of material things. Happiness and suffering are states of mind, and so their main causes cannot be found outside the mind. If we want to be truly happy and free from suffering, we must learn how to control our mind.

Pure happiness can only be attained through developing our mind.

When a jealous person sees signs of other people's success and good fortune, his heart is pierced with envy. But someone who has learned to rejoice in the good fortune of others experiences only happiness. Seeing another person's beautiful house or attractive partner immediately makes him happy - the fact that they are not his own is irrelevant.

Since inner peace is the source of all happiness, we can see how important meditation is.

We know that we are happy when our mind is peaceful, and unhappy when it is not. It is therefore clear that our happiness depends upon our having a peaceful mind and not on good external conditions. Even if our external conditions are poor, if we maintain a peaceful mind all the time we shall always be happy.

Whenever we practise meditation, whether or not our meditation is clear, we are performing a virtuous mental action that is a cause of our future happiness and peace of mind.

A practice that is suitable for one person is not necessarily suitable for someone else, and a practice that is appropriate for one person at one time is not necessarily appropriate for that same person at another time. Buddha did not expect us to put all his teachings into practice right away--they are intended for a great variety of practitioners of different levels and dispositions.