How often do you have dreams of your dead parent(s)?

I've had maybe 8 or so dreams with my dad in them since he's passed. Sometimes they're just weird, sometimes distressing, sometimes comforting. Had a dream today where we went to New York together, and I quickly lost him along the way. I spent most of the trip just looking for him, and he wouldn't answer any of my texts or calls. Eventually, I took a flight back home and called him using my brother's phone, and I was super pissed off. He was still in New York, but he didn't come back.