My Answer: This perspective helps me make sense of God's seeming hiding:
"God is spirit, and those who worship Him must worship in spirit and truth."
God is Spirit.
We can see, feel, hear, taste, touch, know PHYSICALLY - we can reason and we can apply the scientific method, but we will never find God physically - with our physical senses, minds, reason, emotions - because God is Spirit.
We can see, feel, hear, taste, touch, know SPIRITUALLY - we can open to our spiritual information, expereince, gifts and fruit. It is HERE that we find God, spiritually. We also find who we Really are and what we are called to be and do, spiritually. We find everything we need to be free, whole and grow into our maturity in God, spiritually. We can live in the Kingdom of God NOW, spiritually.
We can't do ANY of this physically. God is Real, and our life in God is Real - but none of this is consciously available to those who refuse to look beyond the physical, into our direct, unique spiritual expereince.