pop ups are beautiful unique energy jewels portaled in by Melanie for sharing with you in some super fun and creative way. Usually, this will look like some form of a salon / short class / workshop / mentoring / intense dialogue opportunity.
Pop-ups usually come through with a limited amount of time available between the revelation of the topic/reason for it and when it should happen, so these tend to come and go quickly.
The best place to get the fastest heads up about these is in the red blue purple community, where members have first pass access to all pop ups. This is especially crucial when pop ups are limited size, as they often are, for intimate conversations and mentoring.