Has anybody had weird experiences after someone close to you dies?

After my mom died, I had what I call a ‘dream’, but in reality, I honestly think I spent some moments in heaven with my mom and my dad. (no I am not mentally ill). It had been four months since my mom died, and this experience started out like a dream, and then there was this change in how I was viewing things. You know the Claritin commercial that says “Is it clear, or Claritin clear?”, and the picture is suddenly bright and the colors are fantastic? It was this way in this ‘dream’. Everything was bright and vivid and colorful, a million times more clear that what I see in everyday life. My dad was sitting in the chair in the hospital room, my mom was in the bed, and he looked at me and I could read his thoughts. I had been trying to decide what mom needed in her purse, putting her purse beside her bed so she’d be able to reach it, and when my dad looked at me, he projected this thought to me that I didn’t need to have to be responsible anymore-he was with her now. And then he smiled. (In real life, I don’t recall my dad ever smiling). He seemed totally relaxed (he wasn’t in real life). My mom was laying in the bed with her hands crossed, and I reached over and touched them. I could also see her hands just like I was looking at them in real life. Then I knew it was time to leave. I woke up right after that and it was around 4AM. It felt so real and I started sobbing. I never could go back to sleep. I was on this adrenaline high, but at the same time, exhausted. I’ve heard since then that this is called a grief dream, and you have them to help you get over grieving. Anyone have experiences like that, or similar?