The traveller has to knock at every alien door to come to his own, and one has to wander through all the outer worlds to reach the innermost shrine at the end.
旅人须敲过每一扇陌生的门,才能回到自己的门前;人也须漫游外在的一切世界,才能最终抵达内心深处的圣所。
— Rabindranath Tagore · Gitanjali, 12 (1912) —