In Buddhism the mind is seen as the root of all suffering and happiness; it is our intention and the actions that follow (Sanskrit: karma) that drive our future experience. At its core, Buddhism is concerned with freeing ourselves and others from suffering by discovering the true nature of mind.
Travelling the Path
While the Buddha revealed to us the path through his teachings (Sanskrit: dharma) it is up to us to travel the path and achieve the same state of realization that the Buddha attained.
To read a concise and clear overview of what Buddhism is, please visit the Dechen US site:
How to Become a Buddhist
Anyone with a sincere wish to do so can become a Buddhist. Here Lama Jampa explains how: