We know very little about god and the infinite. Known is a drop and unknown is an ocean. No one knows the value of infinity and no one knows the origin of god. Yes god exists in an unknown form with some limitations. God is eternal. God is an emotion, belief, faith, and hope. Infinity is an abstract concept but when combined with god it is concrete.
Lord Shiva is the first god who walked on the earth and lived on the earth as an ordinary man with supernatural powers. We all came from nature and still, we don't know about nature's powers. As nature created us it also destroys and also safeguards us. These powers are embedded in some great humans by nature to safeguard the people on the earth. No system predicts exactly how nature reacts. The actual power lies in nature which controls all of the universes.
Our sages and older generations with the divine blessings inscribed infinite knowledge in Vedas scriptures Puranas ithihasa and epics and in our traditions and culture.
All these are guiding us to lead a happy life.