She sounds like she's going to be a smart child. One of my daughters wouldn't nap and my arms were hurting from carrying her all day long...the baby bjorn baby carrier saved me...but oh my back.
If you know for sure that she's not in pain, not hungry, needs her diaper changed, or not hot/cold, then she wants to be comforted for some reason or another. I would just comfort her while hugging with you sitting down in a chair. The crying will subside. And then she's more likely to get bored in this position and want to play with toys on the ground.
In my own experience, I didn't know about the importance of "comforting" until I had another daughter. Since my second daughter was very good-natured and didn't cry much, I didn't pick her up much. I made sure everything was taken care of except for the "comforting". She didn't have much adult interaction. She became a vegetable at around 12 months of age and didn't cry for food very much after that. Her doctor labeled her, "Failure To Thrive" as she was whittling down to skin and bones. As a result, she now has gross motor delays. We have seen many therapists over the years and have seen great improvements.
That's when it hit me. There have been documentaries on kids who were left out in the backyard with their dogs. Their behavior? ...barking, eating with their face out of bowls, scratching for fleas, no speech, etc... Discovered at the age of 6, their behavorior became pretty fixed. Those discovered at the age of 2 could still be helped. So, the vegetable state my daughter was in was no different.
In summary, smart babies know that they can not only be more brave, but also learn more by being around mommy.