It is everything he can do to keep from moving the candle to light the talisman on fire. Why wasn't his husband focused on the actual problem yet! The most Lan that ever Lan-ed was shamelessly un-Lan right in front of their brand new son!

It isn't physically possible to get any more red faced than Wangji as Wuxian finally connects the dots. "No but.." He looks back toward the screen and wants to cry. The boy's head was under his pillow! He must've heard everything.

"I need to meditate." I.e. He needs to go kneel for a while, but thankfully at his rank, he doesn't have to do it in such a public place anymore. He'd likely go to the Back Mountain alone and then end up in the cold springs for a ritually frigid and lengthy dip. It was unlikely they would see him again today though.