An internal condition affecting listening is
1)loud music or noise
2)a too cold or too hot room
3)an uncomfortable chair
4)a thoughtful, receptive attitude

Ifound this on google “preview — long walk to freedom by nelson mandela. “i am fundamentally an optimist. whether that comes from nature or nurture, i cannot say. part of being optimistic is keeping one's head pointed toward the sun, one's feet moving forward.” i hope this you for what your looking for.