The word 'religion' comes from two Latin words: the prefix ‘re’ as in repay, return, etc., and ‘ligare’ which means ‘to bind’. A ligament, which is a fibrous tissue connecting bones or cartilages, stems from the same Latin root as ligare, from which comes the English word 'religion'. In medicine a ligature is a thread used to tie or bind a vessel.
Therefore, when I think of 'religion' (the noun) I am thinking of a 'set of beliefs' by which a person is guided, a 'set of beliefs' which he 'binds back to' - and applies in his life (‘religion’ the verb). One should clearly distinguish between the noun and the verb.
Even atheists and agnostics have their own 'religion', their own ‘binding back’ to a ‘set of beliefs’. Just because they don't believe in a higher spiritual Being, or a spiritual dimension of Life, doesn't mean they don't have their own belief system! And what about the 'fruits' of party politics?
Fabian socialist labor prime ministers of Australia, Gough Whitlam, Bob Hawke and Paul Keating most certainly had a set of beliefs, out of which stemmed the policies they imposed upon this nation. They most certainly did apply their 'religion'! Just as liberal prime ministers Malcolm Fraser and John Howard continued with the very same set of beliefs and as Malcolm Turnbull’s ‘Liberals’ will now also do.
http://alor.org/Library/Hawke%20RJ%20-%20Address%20to%20the%20Fabian%20Society%20.html