和龙潜坤、秦开元两人一样，在封之洞的脑中，同样也出现了佛音梵唱，钟鼓齐鸣，而且，他所感受到的这些甚至更强于龙秦二人。
这也是许半生所并不知道，封之洞学过忍术，而日本则是单纯的佛国，他们的忍术很大程度上本就依托于佛法。封之洞是在不经意之中受到了佛法的熏陶，追究的紧密一些，甚至可以认为封之洞是佛道双修的修行者。
是以，他脑中那被藏得很深的部分，就被许半生的这首歌彻底的勾动。
带着内力和精气去诵唱的歌曲，又隐含佛意，这对任何一个修行者，当头棒喝的作用都是很大的。
而封之洞也直到许半生一曲终了才发现，自己和邹南芳竟然也在不知不觉之中随着包间里那些女人的放荡形骸而产生了欲念，只是他们并不自知，却被这一首《难念的经》彻底警醒。
也正因为他们受到了这样的影响，许半生才能在封之洞的忍术之下，依旧察觉到他们俩的存在。
包间里又恢复了声色犬马的场面，已经知道自己欲念被勾起的封之洞和邹南芳，就再也抵挡不住这灯红酒绿的诱惑了，哪怕他们极力摆脱，心中却也已经留下了极为深重的********的痕迹。
封之洞和邹南芳认为他们可以凭借自己的力量摆脱，人世间的七情六欲，对于修行者而言简直就是笑话，他们根本不认为这会对他们成为任何的阻碍。
其结果是两人凭借深厚的修为强行压制住了欲念，他们以为欲念全消，可却并不知道这欲念只是被埋藏在了道心的更深处，一旦爆发，就会惨不忍睹。
许半生随后离开，二人已经不想再盯着许半生了，而是跟上了龙潜坤和秦开元。
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