Routine work can be comforting. The establishment of regular routines creates a sense of stability. When work is routine, one can build their skills. There are advantages to routine work.

yes penguins are quite comforting they have a way with humans

No, comforting is not a prefix. It is a word formed from the verb 'comfort' by adding the suffix '-ing'.

C.S. Lewis was known to enjoy drinking black tea, particularly with milk and sugar. He often referred to tea as a staple and comforting part of his daily routine.

comforting.