This is something that just popped into my head as a way to formally greet the Sun in the morning.

Greetings, O Lord of Light
If it please you, bless my way
May your light show me the Path
May your light show me the Truth
May your light show me the Way
May your warmth fill me
May your warmth sustain me
May your warmth help me grow and learn
I give tribute to your love that comforts and protects
To your light that reveals the world
To your fire that brings heat and life
To your life that fills the void
Blessed be O Lord
Blessed be O God
Blessed be O Sun
Show me the Truth
Guide me down the Path
Protect and guide me in the Way
This I ask, O Lord
Blessed be.