" The joy and general sense of well-being that often (but not always) goes with being “in love” can easily silence conscience and inhibit critical thinking. How often people say that they “feel led” to get married (and probably they will say “the Lord has so clearly guided”), when all they are really describing is a particularly novel state of endocrine balance which makes them feel extremely sanguine and happy. (O. R. Barclay, Guidance, pp. 29-30) "
― J.I. Packer , Knowing God