Can I play Meditation in reaction to a Temporary unit's death trigger and exhaust that unit to draw 2 cards?

Ruling: Yes. When your turn begins, the Awaken Phase occurs first, readying all your exhausted units. Then during the Beginning Phase, the Temporary trigger goes on the chain, creating a closed state. You can react with Meditation and exhaust the now-ready unit to pay the additional cost and draw 2 cards.

Sequence:

• Awaken Phase: All your exhausted units (including the Temporary unit) ready
• Beginning Phase: The Temporary trigger is placed on the chain
• You play Meditation as a reaction and exhaust the ready unit to pay its additional cost
• Meditation resolves first (draw 2 cards), then the Temporary trigger resolves (unit dies)