Mixed Blessings: Beginning (Unabridged‪)‬

To quote a popular phrase: "Everything must have a beginning, a middle, and an end." 

My beginning is what is important now. My beginning is a form of a spotted miracle, a sort of blessing, blessings. 

Who am I? 

My name is Tishna Rayvilleton. 

What am I? 

I am an immortal with a twist.