Taurus
What is already familiar, instinctive, and ready to be carried forward.
Gemini
What is arriving, stretching the old shape, and asking for a new response.
A cusp is best understood as a threshold image: Taurus's earth fixed quality meets Gemini's air mutable quality. The Sun is still in one sign at a time, while the neighboring symbolism can describe the season around it.
Taurus brings
Taurus is ruled by Venus and speaks through earth fixed movement. Its familiar lesson is about the lover.
Gemini arrives
Gemini is ruled by Mercury and changes the texture toward air mutable expression. Its invitation is to practice the trickster.
A boundary, not a loophole
If you were born near a sign boundary, use an accurate birth time and place when a precise chart matters. The cusp language can be a useful metaphor, but it should not replace the actual Sun sign.