It surrounds me, keeps the mundane world out.

音乐环绕着我，将凡俗事物隔离在外。

But all that, of course, was in the mundane world that was gradually being pushed out of his mind by the rich, pervasive world of Shangri-La.

但这一切，当然都是在世俗的世界里，这个世俗的世界正逐渐被香格里拉这个丰富而无孔不入的世界赶出他的脑海。