Engaging with a prisoner via letter writing can deliver them with a sense of wish

https://www.slideserve.com/beleifnuls/bridging-the-gap-the-transformative-journey-of-writing-to-prison-pen-pals-at-wr-14240284

Engaging with a prisoner due to letter writing can give them with a feel of desire and connection to the exterior world, aiding fight the loneliness of incarceration.