Explain few things that the slave sees in his dream. What do they tell about his homeland in “The Slave's Dream” by Longfellow?
Freedom and power are further demonstrated in the image of a family and the warrior this king is.
Slaves were generally ripped away from their families. To have his "dark-eyed queen" and his children "clasp[ing] his neck," "kiss[ing] his cheeks," and "hold[ing] him by the hand," likely brought a relieving freedom unlike just being free from the slave-driver. Men love to protect and raise their families. This slave was robbed of that opportunity.
Power was further demonstrated in his ability to be a warrior:
At each leap he could feel his scabbard of steel
Smiting his stallion's flank.
Riding along, weapon in tow, this man felt the strength of being able to defend his family or his people, whatever the circumstance required. As a slave, this animal and weapon were stripped from him.
What the slave sees of his homeland is a number of images -- all of these images are connected to freedom and power, really.
He sees himself as a king. This is, of course, an image where he is free and powerful. Not only is he a king, but there is a caravan coming and his country will get money from that caravan.
As a king, he sees himself following the flamingos as they fly. This symbolizes freedom because he can follow the birds as they fly -- he is free to go where they go. It also feels powerful because he can ride for so long and still be in country where he is king.