Sadhu Sundar Singh, writes in Wisdom of the Sadhu:

Once when I was in the Himalayas, I was sitting upon the bank of a river. I drew out of the water a beautiful, round stone and smashed it. The inside was dry. The stone had been lying a long time in the water, but the water had not penetrated the stone.

It is just like that with the "Christian" people of the West. They have for centuries been surrounded by Christianity, entirely steeped in its blessings, but the Master's truth has not penetrated them. Christianity is not at fault; the reason lies rather in the hardness of their hearts. Materialism and intellectualism have made their hearts hard. So I am not surprised that many people in the West do not understand what Christianity really is.