I also believe this, I'm not big in the whole aftermath thing but my cousin saw my grandpa about 3 weeks after he passed.
Then my nephew thinking we would all think he was nuts(his words) told me last Saturday that he had a conversation with my dad, he passed 9/9/17, and his brother backs the conversation happening. But he didn't see dad.
The SUPERNATURAL is something i try not to mess with, no telling but definitely odd.