For you are the fountain of life, the light by which we see.
(Psalm 36:9 NLT)
The mental image of God being described as a fountain of life is that of a fountain you may see where water is gushing forth constantly. There is no stagnant water. It is vibrant and thriving, and the mist of it rises up to make spectrums of rainbows everywhere. God is our Creator. He is the giver of life - pulsating and thriving!
The next part of the above verse is describing God as light. He shines so brightly in our lives to lead us in our daily activities. His radiance is so clear that we don’t need to question His guidance. There is no place for darkness.
God is our life and our light. His love for us is so fierce that we need not doubt it. He gives us what we need and then guides us each step of the way.
"Faith derives both light and life from God, and hence she neither dies nor darkens."
- Charles Spurgeon