Twelve-step groups have a rule against crosstalk. It’s a good rule for churches, too.
When I walk and talk with a friend, we share an intimate experience. Listening to a podcast is similar.
Listening itself has a sacramental dimension. When a family gathers around a hospital bed, it becomes a sort of communion table.
Grandma and Bob got along famously. They complemented one another: Grandma was hard of hearing and Bob was almost blind.