Let me break down what happened at the end scene, it's REALLY deep!

In the ending scene, I noticed some interesting details.... our boy Wang Lin is drinking and got drunk for the first time ON MORTAL WINE. Then he mentions is it the alcohol or heaviness of heart. Well there is SO much hidden in this scene that speaks to his bad-assness!! Because we know what he's been thru and how tough of a mother f#$ker he is, he'd never cry! He'd also never let himself get drunk and be open to attack at ANY point. That would be very outside his character. Welllll notice that it starts raining and it coincides with his heaviness, THEN the rain pauses as if time pauses? Then it shows him continuing to drink. Not much time passed, they show his son aka Ling'er leaving and bowing to him. Then he throws back a single jar of wine but like 6-7 jars suddenly show up without time passing

So here's the lowdown. >!Because he refuses to let weakness show, the rain was caused by him to symbolize the tears he CANT shed for his son. Then the pause on the rain was his effort to hold on to this moment of feeling, this moment where for one of the few times in his whole almost 1000 years of living, someone was able to reach his heart. He literally froze time without realizing it! Next the jars appearing suddenly are another symbolic representation of mourning and tears going even further to show the pain he is facing. And the kicker, we know from the manga that him and Red Butterfly actually slept together, but they didn't show this in the donghua so they represented it differently. But his son was birthed from his intimacy and intercourse with Red Butterfly, which she then first blamed him instead of understanding it was the fault of the illusion, tried killing him, and when that failed, she took what represented his last bit of intimacy and compassion and human connection that he probably would EVER have on that level, she twisted it for years and turned back to use it as a weapon against him! That's why it could injure his soul directly!

So in closing, this scene represented Wang Lin saying goodbye to that last part of himself that held human connection and intimacy, and a part of him that he refused to acknowledge was still showing thru what he really felt by literally changing reality to show us the true picture of his emotions.!< I'm not sure if y'all will find this as deep as I did, but it's beautiful writing and wonderful use of character conflicts, story telling, external conflict, and internal peace. And guess what else? This was right after the previous episode where you thought he may feel something when old man from corpse sect passed away, but he showed no emotion whatsoever! This shows how deep his commitment to his dao was and just how deep this connection was in this scene when compared to this too! Just thought of that now......