For me being a Christian, a real mainstream Christian in a non denominational mainstream church keeps me in the here and now. Gives me focus on the hear and now. Gives me purpose for the hear and now. Not because my pastor tells me what to do or how to think today, but because Jesus is constantly before me. He is here and now with me by His Words (reading the Bible daily), by spending time with others who believe, by our unified worship in music.
He shows me the boundaries I need to obey for today for my own benifit. His Spirit guides me when I am not sure. He will orchestrate circumstance to assure me if I am unsure. I really don't care much about heaven, hell, or the unknown. I don't care much about the future.
Being born with a genetic blood disease that has caused chronic illness, surgeries, and a death sentence that I have outlived by 14 years so far, you would think I should have quite a bit to give me worries. I live one day at a time, by the blood of Jesus His grace has brought me to a very beautiful place of peace and love.