I'll go first, I'm not afraid: My Father has my back :)
To me, the most important aspect of my relationship with Jesus is Grace. I spent my whole life in a demonination that didn't emphasize Grace nearly enough. When I found grace the hard way, it changed everything. I used to pray about 30 mins a day and read my Bible about the same amount of time. I went to every bible study I could find, and never missed Church--if the doors were open, I was there.
Now, I spend my whole day in prayer--I truly pray without ceasing. I talk to Him and He talks to me. It's nothing formal and pretentious (or religious) like it used to be, we just hangout and talk like best friends. It has given me a heart for my brothers and sisters in Christ for them to experience Him the way I do. Most of them reject what I've learned from Him.
I wish I would have spent more of my last 40 years knowing Him instead of knowing about Him.
When we love someone who doesn't love us back, we hurt because we have lost out on something. When He loves someone who doesn't love Him back, He hurts because they have lost out on something amazing.
Grace, grace, grace. It truly is enough.