Whether Ganga flows within or without the limits of a bank, Ganga is beautiful; meaning Truth is beautiful. When a spiritual leader or saint experiences the Truth, they create banks for their followers to experience the same. Until such a sect remains connected to the Truth, it is beautiful. Pujya Bhaishri talks about this as the main theme on day 3 Katha of Shri Ram Krishna Bhagavat Pravah. Watch the highlights which include this topic in brief in addition to the magnificent darshan of the various forms of Gods and saints exhibited by youngsters during the Katha.
When actions, thoughts and emotions are connected to the Truth, they are considered as Dharma. If your emotions and thoughts are connected to truth, then your actions will be aligned to truth.