Your connection to your celestial ancestor is so strong you can tap into their power.
You learn to cast Command and you can cast it 5 + your Charisma modifier amount of times, without expending a spell slot. As a Protector or Scourge Aasmiar you also learn to cast Aid and Remove Curse, or as a Fallen Aasmiar you also you learn Blindness/Deafness and Bestow Curse, each of which you can cast once without expending a spell slot or needing material components.
You regain the ability to cast these spells in this way when you finish a long rest. Charisma is your spellcasting ability for all three spells.