Shalom means Peace. At the heart of mainstream world which now clings on instability, fear, distrust, discontent, crookedness, infidelity, misery, division and sorrow, Peace amongst brethern is the only way to bring ALL likeminded beliefs together.
Here belief does not necessarily mean Monotheism. By and large it means bringing people who think or want to think positively in a particular area with the intension of improve the Social Life, including themselves.