理解下列诗句的意思。
1．本自同根生，相煎何太急？
                                                                                     
2．洛阳亲友如相问，一片冰心在玉壶。
                                                                                     
3．千锤万凿出深山，烈火焚烧若等闲。
                                                                                     
4．却看妻子愁何在，漫卷诗书喜欲狂。
                                                                                     
5．千磨万击还坚劲，任尔东西南北风。