In the Hindu Bhagavad Gita, after Arjuna sees Death and Life, darkness and light as part of God, he says, "O Lord of lords, O refuge of the worlds, please be gracious to me. I cannot keep my balance seeing thus Your blazing deathlike faces and awful teeth. In all directions I am bewildered...O Lord of lords, so fierce of form, please tell me who You are. I offer my devotion unto You; please be gracious to me. I do not know what Your mission is, and I desire to hear of it." ~ Verse 11:25, 31
Lord Krishna responds, "O best of the Kuru warriors, no one before you has ever seen this universal form of Mine, for neither by studying the Vedas, nor by performing sacrifices, nor by charities or similar activities can this form be seen. Only you have seen this. Your mind has been perturbed upon seeing this horrible feature of Mine." ~ 11:48,49
For many, this is a dreadful realization. We prefer our God/s to be loving, compassionate and healing - as we understand those terms, which means removal of pain and difficulties. Spiritual maturity and deep soul-making requires us to incorporate all of life into our cosmic vision. The most miserable people in the world are those who consistently expect to be happy all of the time. Paradoxically, the most joyful people in the world are those who see the all encompassing hand of the Divine in every circumstance.
The Yin/Yang symbology sees both Light and Dark as Eternal ('God' if you prefer). The goal of life is for each developing human soul to realize and incorporate the opposite into their character in order to become fully Human. It is a long, often rigorous and difficult process for most of us to gaze beyond our dogmatic but limited ideas of 'what God is' and 'how God thinks.' Of course God sees and thinks like we see and think, until we yield to our role under the All.