It's not sorrow. It's not an inferiority complex. It's not the inability to provide his wife with a better life. His eyes show more than all these. In a scene in Apur Sansar which is as much as Soumitra's film as it is Satyajit Ray's. In a couple of decades down the line - with the exception of a few Bengalis - not many believe that Apur Sansar is his acting debut on the big screen.
An actor of such highest class that India's greatest ever filmmaker Satyajit Ray cast Soumitra Chatterjee in more than a dozen films (14 to be exact to represent the 14 worlds as described by Indian mythos). Starting with Apur Sansar till as recently as Bela Shuru in 2020 Soumitra failed as an actor not even once. He's a thespian Indian art should forever be proud of.
That he's a director, playwright, writer and poet, is just a proof of what a contributor he's to the world of Indian art. His untimely death (he's just 85, and enjoyed a career of 61 years - may look as a long and satisfying career but fans are fans and their quest to watch more of him is unending) is not just an end of an era - art lost its best friend.
Saludos master! The doors are always open for you!