What sane in the mucus threads?

The phrase "sane in the mucus threads" does not have a clear or widely recognized meaning. It could be interpreted as a poetic or metaphorical expression, possibly suggesting the idea of finding clarity or sanity amidst confusion or unpleasantness, represented by "mucus threads." Without additional context, it's challenging to provide a definitive interpretation. If you have a specific context or source in mind, please share, and I can offer a more tailored response.