God gets upset when Castiel asks her if she's dying...
Castiel and God sat upon the same building in New York as they had many times before. When Sam and Dean sent them away, claiming to require 'heaven-free time', the two went there. Only rarely did they talk. They both enjoyed just watching humanity, especially God.
However, today was different than all the others. Castiel had a question. It had been stewing in his mind for many days, and he'd been very careful to only ponder it while God slept.
He'd noticed some odd behavior in God. Some days, her eyes were bloodshot and she was quiet. Others, she appeared to be hiding even her miniscule emotions. She was normally so apt to offer questions and advice, but she'd been relatively silent for the past few days.
Castiel glanced at her. Today was one of those days. Her eyes were heavily lidded, and she looked tired. Her golden orbs didn't shine like they normally did.
"You are concerned," she uttered, her view focused on the city. It had not been a question.
Castiel nodded. "I am."
Her jaw clenched, and her throat jerked as she swallowed heavily. "You should not be."
"You're lying."
Her eyes flashed to him, flaring with anger. He had seen her exhibit many emotions – happiness, sadness, pain – but anger was something he'd thought her incapable of. It marred her wisdom and brilliance greatly.
She glared at him. "I am God. My lies become the truth," She growled, her voice laced with malice.
They stared at each other for several moments. God's anger did not waver nor fade. Castiel was taking a moment to assess the situation, to ask himself whether or not to continue.
"Are you dying?" he asked, his vessel's blue eyes piercing God's golden ones. He did not think it wise to push the matter, but his time with the humans had taught him that pushing boundaries was a rewarding business.
In the blink of an eye, God scowled and disappeared. Castiel could follow her, and he did. He experienced surprise when he found himself at the back of the church he'd shown her.
She was seated in the middle of the room, staring at the cross along the back wall. The setting sun shone through the stained-glass windows, and cast strange colors across both one side of God's face and the benches around her. The anger had disappeared from her features.
"You told me the humans come here seeking sanctuary," she murmured, continuing to stare at the cross. "May I seek sanctuary as well, Castiel?"
Carefully, he trod across the length of the large room and sat beside her. He did not answer her question, for she already knew what he would say. Instead, he closed his eyes and prayed. God watched him with affection, and eventually closed her eyes and did the same. She did not pray to God, obviously, but found herself speaking to her three warriors: Castiel, Samuel, and Dean.