Do not be deceived, God is not mocked; for whatever a man sows, that he will also reap. Galatians 6:7

As a child of God, you have the Holy Spirit of God living inside of you. He never leaves you alone...He is always there to see, hear, feel and experience everything you encounter. He knows your thoughts and sees your actions. Nothing we do goes unnoticed by Him. 

Knowing that, should encourage us to always walk in total obedience to His guidance and His will for our life. As humans, our fleshly minds and desires sometimes forget about that commitment we made  to faithfully walk in obedience to Him. We have these moments of pride and decide that what we do is for our own good or pleasure. In our moment of "it's all about me" we turn our back to God and live it up. Meanwhile, we grieve the Holy Spirit by our unwise choice to be disobedient. 

When we turn our back to God, we cover the protecting light of Christ and our pathway becomes darkened. Before you know it, we realize we can't see the path ahead and we flounder in our self centered situation...vulnerable to Satan's attacks and consequences of our sin. We "reap what we sow".