It's curious. You are there sitting in your chair, in a state that feels like you need an infinte amount of strength to do anything useful. Instead, you find something easy to do: read, play, eat, etc.
The thing is, it just feels like it's hard and heavy. You need a little bit of effort to start only. After that it just goes on its own.
At least that's what's happening to me right now. And it keeps getting easier.