Gaara looked at Kankuro uncertainly. "Do you think he'll come back?"
Kankuro gazed at him for a few moments, gauging his response. Then Kankuro smiled and rested a hand on Gaara's shoulder. "Nah."
Gaara's eyes widened, startled. "No?"
"I don't really believe in that stuff," Kankuro admitted. "It's just a festival to me."
"Oh." Gaara relaxed.
They lit the paper lantern together and made sure it was secure in the way it hung by their door, then went back inside. The lantern stayed lit all throughout the festival of Obon to guide spirits of their family members to their home so they could visit.
And the end, they tied the lantern to a balloon and let it free, letting the wind guide the spirits back to their home in the afterlife.