But in the course of time the truth was lost. The tendency to dominate arose, and with it the patriotism of the community and prejudice against others; and thus wisdom was gradually lost. Religion was accepted, though with difficulty, but the evolution of the world at that time was not such as could understand the Sufis. They were mocked at, ill-treated, ridiculed; they were obliged to hide themselves from the world in the caves of the mountains and in the solitude.