What is the purpose of the Dharma? Just like other spiritual traditions, Buddhadharma is an instrument for training the mind–something we use to try to work out the problems that we all experience; problems that originate mainly at the mental level. Negative emotional forces create mental unrest, such as unhappiness, fear, doubt, frustration and so forth; these negative mental states then cause us to engage in negative activities, which in turn bring us more problems and more suffering. Practicing Dharma is a way of working out these problems, be they long-term or immediate. In other words, Dharma protects us from unwanted suffering.
Buddhadharma means bringing discipline and inner tranquility into our mind. Therefore, when we talk about transforming our mind and developing inner qualities, the only way we can do this is to utilize the mind itself. There is nothing else we can use to bring about such change. Thus, we should realize that much of what we do not desire–unwanted events, unhappiness and suffering–actually comes about as a result of our mistaken way of viewing the world and our destructive thoughts and emotions. These negative minds create both immediate unhappiness and future suffering as well.
Underlying all of this is a fundamental ignorance, a fundamentally flawed way of perceiving reality. In Buddhism, this is called “self-grasping,” or “grasping at self-existence.” Since this is the case, the way to eliminate negative aspects of mind and the suffering they create is to see through the delusion of these mental processes and cultivate their opponent–the wisdom that is correct insight into the ultimate nature of reality. Through cultivating this insight and applying it as an antidote, we will be able to dispel the suffering and undesirable events in our lives.
[From Illuminating the Path to Enlightenment by H.H. the IVth Dalai Lama]