I need help in the worst way!

I lost a good friend from HS and all these decades that followed. He was a car guy, a GM guy, but... He passed this last Fri and I was told Sat. Easter day, Sun. my brain ran so many of our experiences together thru my head. I felt weird all day. I had dreams all night of our time (many years as friends) together. Today, Mon. I feel, well it is very hard to explain, but I feel like just being me today, I feel very much OK, I feel like he has passed on into the ????????. Maybe today I just feel the reality that he has passed I am still here living and life's circle has made it loop once again? I feel a calm and quiet that is so different than yesterday. I understand he is gone, and I am OK with it. I will miss the fact he is no longer here though. I still have good memories.