You must follow the normal timing permissions and restrictions of the spell you cast from your graveyard.

You must pay the costs to cast that spell. If it has an alternative cost, you may cast it for that cost instead.

Once you begin to cast the spell, losing control of Danitha won't affect the spell.

If you cast a spell from your graveyard using another permission, Danitha's effect doesn't apply. You can cast another Aura or Equipment spell from your graveyard.

If you cast one Aura or Equipment spell from your graveyard and then have a new Danitha come under your control in the same turn, you may cast another Aura or Equipment spell from your graveyard that turn.

If an Aura or Equipment card is put into your graveyard during your main phase and the stack is empty, you have a chance to cast it before any player may attempt to remove that card from your graveyard.