What is so fascinating about our world is how it contains opposites – to begin with a story – once the Rebbe Rashab (fifth Chabad Rebbe) was in a wagon with an atheist who asked him “do you believe in angels” – he replied “four creatures are traveling together” – “you and I as passengers, the wagon driver and the horse” – now each of us has an individualistic intention – I am traveling for a vacation – you for business, the wagon driver to earn some money and the horse, motivated as he is by the knowledge there will be hay at the end of the journey; now because the horse has no awareness of money business or vacation doesn’t alter the fact that those are also realities – in other words, in a room which is light everyone sees light, but in a room which is dark and light is a concept, though light is a reality, it is simultaneously possible for others to not be aware of it.