Esteem can mean thankfulness as well as attention. When we express esteem for life we means also thankfulness and attention for life.
Remembering that each day is a present makes the day precious. It’s not like we have a guarantee of life. We receive life as a present which makes us thankful and attentive toward life.
Esteem for life can mean that we wake up in the morning with the first thought: thank you for my life. We give thankfulness and attention to our life – we give esteem for life.