How does Dazzling Aurora work - is it mandatory to use, must you play the first unit revealed, and are cards revealed publicly?

Ruling: Dazzling Aurora is mandatory to use at the end of your turn. When you reveal cards, you must play the first unit you reveal and cannot choose to recycle it instead.

Sequence:

• At the end of your turn, you must use Dazzling Aurora
• Begin revealing cards from your deck one by one
• Reveal each card publicly so your opponent can see
• When you reveal the first unit, you must play it

Nuances:

• Cards must be revealed publicly as proof that you are not picking something else or skipping over cards