When God lead the Israelites out of Egypt, He lead them by a pillar of cloud during the day and a pillar of fire during the night. God was always with them no matter the time of day or night.
God is always with you too. He cares about every thing you do even if they seem small. Today, He doesn’t lead Christians with a pillar of cloud or a pillar of fire. Instead, we have the Holy Spirit that dwells in us to guide us. (1 Corinthians 3:16) He is the voice inside you that tells you the right thing to do and the right way to go so that God will be glorified. (Isaiah 30:21)
In this design, the time of day and night is symbolized by the gradient in the background. As it progresses from day to night, the pillar changes from cloud to fire.