Which is real?
The rat race of Caesar or the Lord's playground?
You are technically correct if you answered both.
Perhaps a better question would be which is more real to you, things of Caesar or the Lord?
Or which holds the greater significance for you, the physical mundane world or the spiritual?
Does the song, "row, row, row your boat…life is but a dream" mean anything or is it just a children's song to sing?
Do you have real purpose without service to the Lord and humanity (being steward of the earth)?
Do you have real connections without connections to the Holy Spirit and humanity?
What will matter in the end?