To roll the body about indolently or clumsily in or as if in water, snow, or mud.

打滚在或好象在水里、雪中或泥浆中懒散地或笨拙地滚动身体。

So it is with many souls who indolently live on the outer edge of their own natures until great thunderstorms of sorrow reveal hidden depths within that were never hitherto suspected.

许多得过且过祇在人性浮面生活的人，也是如此，直到要受到了大雷雨似的打击，他们才窥见灵魂的深奥。