It's about reconnecting with his father, he gets teary and wipes his eyes, i think the interview shows more in its longer version though.
https://sports.yahoo.com/video/jim-parsons-fights-tears-cries-064009477.html
''I like crying. And now I not only wanna cry and show my crying to other people, I wanna just split myself down the middle and open my guts and just throw everything out!''
Woody Harrelson
