Anna, when you say 'inner life' you mean that you don't romanticize or get excited about stuff around us, right?
In other words it takes a little bit of imagination for appreciation/reverence?
I've found myself euphoric some afternoons after a couple of beers and good songs on the net but I don't suspect that good feeling is meant to be constant otherwise it would become stale.
However I do know years back when I suffered a depression nothing held my interest and those were sad times indeed because not only was I hurt inside but I was also bored all day long. That depression eventually passed.
Most times I am pre-occupied enough with my activities to feel content - not ecstatic but content and contentment is enough for me.