Spiritually, we need an authority to guide us. On our own, as many in the world are, it's easy to follow what we feel like or what everyone else is doing and not question our conscience, which most likely is already muddy or numb due to the lack of guidance. We basically become lost souls. I feel good that Christ and his Church has provided me with clear, authoritative teachings to guide me. The fact that they are hard for some to follow only bolsters their authenticity and truth. Of course, there are many others out there who claim that they have the truth and can guide us, but only Christ laid down his life for us and taught us to love even our enemies. Whoever has the greatest love is the authentic one to follow.