The start of a new day

I am excited to see where running takes me. I really like to run-not because of the soreness I feel or the blisters on my heels, but because of the experience. The high you feel after accomplishing something that maybe you didn't think you could do. My whole attitude is different after I run. Why didn't I do this earlier in life? I ran about 4 miles yesterday, hard. I think I am running a 12 min. mile.