Does Duality Even Exist?

Can we perceive is such a way that our daily problems of life don’t even arise?

Recently, I have heard the word, ‘duality’ as often as I have heard ‘non-duality’. “We live in a world of duality”. What does this even mean? I don’t personally know anything about Advaita Vedanta, or certain Zen philosophies, books by Alan Watts or Krishnamurti, or even speculative science. Sure, I’ve explored some of these works but I’ve immediately discarded them for the reason that I felt they were all taking me away from something sacred. And also because I found them quite boring! Hope I’m not offending anyone.