Board Thread:General Discussion/@comment-26099499-20150226151824/@comment-24891101-20150320071619

In that vein, I have seen it occur with some frequency (often in visual media) that some odd, dangerous, or merely bizarre sequence occurs and approaches its head, only for the dreamer to awaken. This is perfectly acceptable with sequences lasting only a handful of minutes (the longer it goes, the more potential for it to be a dick move) with clues within to signify that it is a dream. Considering that we peg it as a dream because of the music and the blur, I'd think that's sufficient indication to the viewer that said sequence is in fact a dream.

It's also not quite at the end of a season arc. It's a stinger. It's supposed to be a bit confusing and mysterious. And I just remembered that there was the lead up to it being a dream, as you said was necessary. The last time we saw Yang, she said she was going to sleep. It's perfectly valid that the next thing we get from her perspective may well be a dream sequence.