Sangharakshita 
What Is the Sangha? 

It can be a surprise to find that Buddhism gives great importance to the Sangha, the spiritual community. Some may feel that their guru or teacher is all that they need. To others, the idea of sharing their inner and outer lives with others can seem a challenge or even a threat. But the spiritual community is not about unthinking conformity or belonging to a comfortable group. Rather, it is the free association of developing individuals choosing to help each other along the path.