Quincunx
A 150° aspect requiring constant adjustment between incompatible energies.
The quincunx (or inconjunct) is a 150° aspect between planets in signs that share nothing - different elements, modalities, and polarities. This creates an awkward, uncomfortable relationship requiring ongoing adjustment. Unlike squares that create productive tension, quincunxes feel like an itch that can't quite be scratched. The key is acceptance and adaptation rather than resolution.
Example
Sun quincunx Neptune: Your ego and identity must constantly adjust to spiritual callings that dissolve boundaries.