The Truth of Suffering
First Noble Truth often translated as “Life is suffering.” Many people new to Buddhism tune out as soon as they hear this. But the Pali word dukkha also refers to anything that is temporary, conditional, or compounded of other things. Even something precious and enjoyable is dukkha, because it will end.
Related to the nature of life is the nature of self. Are we not also temporary, conditional and compounded of many parts? We can understand that life is impermanent but are we, also, impermanent? The Buddha taught that before we can understand life and death we must understand the self.
Taken from: The Four Noble Truths
Psychotherapeutic Applications of Philosophy 