A figurative expression meaning a path or life course laid out for someone by others — "the rails laid out for you," implying a predetermined route.
彼女は親に敷かれたレールの上を歩いているように見える。
She seems to be walking on the rails laid out by her parents.
敷かれたレール通りに生きることが本当に幸せかどうか、自分に問うべきだ。
You should ask yourself whether living according to a predetermined path is truly happiness.
人生に敷かれたレールを外れる勇気を持とう。
Have the courage to step off the rails laid out for your life.