The trine occurs when two planets are 120° apart (four signs apart). It is considered the most harmonious aspect, joining planets of the same element — fire with fire, earth with earth, air with air, water with water. The trine represents flow, ease, and natural talent. It is the aspect of harmony.
The trine is traditionally considered the most benefic aspect, but it has its dangers. The ease it provides can lead to complacency, laziness, and a failure to develop the talents it grants. The trine gives without demanding; the native must supply the demand themselves, or the gift is wasted.
When interpreting a trine, consider:
- The planets involved — what energies are flowing together harmoniously?
- The element — fire trines are creative and enthusiastic; earth trines are practical and productive; air trines are intellectual and social; water trines are emotional and intuitive.
- The houses involved — in which areas of life does the harmony express itself?
- The potential for complacency — is the native using this gift, or resting on it?