An aspect is the angular relationship between two planets in your natal chart. The five major aspects (conjunction, sextile, square, trine, opposition) plus the quincunx describe how those two planetary functions actually relate inside one body. The aspect is the structural fact; the planets involved give it texture.
On Zodiac Signals, aspect readings cover all 270 unique planet-pair-by-aspect combinations across the ten classical planets. Each reading uses contradiction-mechanics grammar, naming the loop, the defense, the compensation, and the integration arc rather than just the mythological flavor.
An aspect is not good or bad. A conjunction fuses; a square frictions; a trine flows; an opposition see-saws. Each mechanic produces its own pattern; the reading you need is the one that names the mechanic running in your specific chart.