The correct spelling of the phrase "light mind" is /laɪt maɪnd/. The first syllable, "light," is spelled with the letter "L," the diphthong "AI," and the voiceless dental fricative "T." The second syllable, "mind," is spelled with the letters "M," "I," "N," and "D," pronounced with a voiced dental fricative. "Light mind" can refer to a sense of ease, brightness, or carefree attitude. It's important to note that this spelling may vary based on different accents or dialects.