What does 听得见摸得着了 mean?
生命好像听得见摸得着了


The sentence can be paraphrased as 生命好像可以被听得见、摸得着了. It can be translated to it seems that now life might be heard and touched. The reason why 了 is there is that originally we assume that life is not something that can be heard and touched, but in author's case he feels like he could be able to do so. 了 here denotes now the situation changed(unable -> able).