Your blood is calling you home, but there's a home in your heart too

When Eruha taught me about the Realm of Nature, he used a mountain drawing as a helper. 

At the base of the mountain, deep within underground cities and tunnels, were the drows, the night children. They were the smiths, the explorers, and the Nightwatch of the realm. Due to the nature of the terrains where they lived, they were agile and deft, and had higher physical ability than the other races. They were the ones who supplied weapons and tools to the rest of the realm, and the ones people would find the most roaming other realms without hesitation. When the night came, they would climb to the surface and patrol the realm to keep it safe.