Is Heaven real?

I’ve seen so many stories on how people passed away and reunited with their beloved pets and saw God and how some people just saw complete darkness. Anybody that has had a near death experience can you tell me what you’ve seen and if you believe God is really real after experiencing it. My dog passed away a couple of days ago and I can’t help but wonder if Heaven really is real, I hope it is I pray all the time I hope something happends in the after life instead of it just being complete darkness. Or if anybody could tell me if dogs do go to heaven as well? Thank you sm for reading this reply if u can God bless 🙏