I've had ego-death spiritual experiences before and there is only a comparison in terms of the "love" component. But, it's not like and like, it's so much more than that. It took me nearly ten years of my life to accept what had occurred (mostly due to my religious upbringing and interests), and about another ten to find the words to describe it. You're literally talking about the type of experience that causes people to become saints and the like it isn't in the purview of the self-absorbed existence that many live in day to day. I could tell you basically how to have one of these experiences, but it is difficult:
1) Become selfless, in every sense of that word. I was naturally predisposed to this, I can imagine this being harder for others.
2) Reject your own mental meanderings and realize they are convenient lies. You must detach from this to pay attention to the now. The less you live in the now the harder these experiences are.
3) Meditate a lot, but with awareness. You aren't looking to meditate on a thing, but rather the absence of things. Blank piece of paper... You will see visions, hear sounds, feel like something touched you, etc.. IGNORE. You must be detached from them or that is where you will stay.
After years of that (or less, if you are diligent), you will have a bonafide ego-death experience. You will never look at the world the same way again. Of course, you're free to keep doing as you want to. I just illustrated it here to explain how difficult the first few stages are. You will know things like God really are, etc. Explaining it is useless really, no one here would believe you anyway unless they had the same experiences.
From a much troubled life, I think I am more with 1. now, even though for much of the past I was never particularly any more egocentric than others, but my insecurities held me back. I can see how this would lead to better places though. One just notices it in others when one meets them. My mind activity never really allowed me into meditation - perhaps it will in the future.