John Denver's song "Today Is The First Day Of The Rest Of My Life" is about embracing new beginnings and living in the present moment. The song captures the essence of fresh starts and the excitement of experiencing life with childlike wonder. The lyrics suggest that every day is an opportunity for growth and change. The line "to grow is to change, to change is to be new, to be new is to be young again" conveys the idea that as we evolve and adapt, we become rejuvenated and rediscover our youthful spirit. The song also highlights the importance of cherishing the small moments in life. The reference to monarch wings and birthday wonderings signifies the beauty and joy found in nature and celebration. It encourages listeners to appreciate the simple pleasures, like walking in the rain or feeling the cold air on their skin. Additionally, the lyrics touch on the fleeting nature of memories. The line "my memories are stolen by the morning, blotted out by the sun's hypnotic eye" suggests that time can fade our recollections, but it is essential to embrace each new day with a fresh perspective. Overall, "Today Is The First Day Of The Rest Of My Life" is a song that encourages listeners to embrace change, live in the present, and find happiness in the small moments that make life worth living.