'Sat' is truth and 'sang' is company. We are energy beings and are constantly influenced by the nature of the energy surrounding us. This makes it important to watch out for who we associate with. But since we cannot avoid meeting all kinds of people at work and home, it is a good idea to make an effort to be in the right company regularly which works as an energy detox.
Satsang is not just about collective meditation and prayer; it is about being in the company of an enlightened master along with other like-minded seekers. Satsang is the only short cut to Enlightened Living.