A little nugget of information.
With danys speech at the end naming all her khalisar blood riders, she actually fulfills a dothraki prophecy that states there will be a khal strong enough to unite the whole dothraki as 1. They refer to this person as the stallion that mounts the world. In season 1 we thought that stallion would be her son with drogo, but she flips it on its head and it's actually her.
The dothraki value strength above all and she asked then to swear their loyalty before the mother of mountains - a holy place in dothraki culture that they only allow men to climb. But what stallion is more capable of mounting the world than her on her son drogon? Love that for her