How to say "soul mate" in Spanish (Día 36)

The video tutorial introduces the phrase 'Alma Hemela', which translates to 'soul twin' or 'soul mate' in English. The teacher discusses a song by Prince Royce that features this phrase and provides examples of how to use it in sentences. The lesson concludes with a summary of the key points.

What is the significance of the line 'Alma Hemela, not El Vido' in the song?

How would you express the idea of soul mates in your own words?