"Stream" is a symbol of the Word of God's life-affirming Will, His Laws and Commandments, by knowing and obeying which one attains to a life of righteousness and passes from physical death into Eternal Life.
Negative Meaning.
"Stream" is a symbol of constantly changing branches, forms, directions of political, religious, philosophical pernicious "Waters" of ideologies, various beliefs, dogmas, false teachings, feeding the peoples a variety of different delusions.