This is only for people who believe the Bible to be God's word.
When Moses relationship with God was at it's highest, he felt comfortable enough to ask God to show His face (Exodus 33:12–23). He was so in awe that he didn't realize what he asked was not possible for man. God told Moses, "no man can view my face and live," (Ex. 33:20). In 1 Timothy 6:16, the Apostle Paul writes, "God dwells in greatness so awesome that no man can come (physically) near."
Philip, one of the Apostles, thought he could view the face of the Father, but he was rebuked by Christ (John 14:6–11). Jesus then taught Philip that one could see the Father by observing and learning from the wonderful works that were being done (John 14:8–9). The lesson for us is, don't look for the physical view of God; instead look for God in the works of righteousness. When you see a person living a holy life, you are seeing God though the works of that person (1 Peter 1:14–16). As for seeing Him as He really is, one must make it to heaven in order to experience that (1 John 3:2–3).