Day
Like other descriptions of time in the Word, "a day" or a number of "days" describe a spiritual state rather than our natural concept of time. A spiritual "day" describes a state of mind or a state in our relationship with the Lord rather than a 12-hour or 24-hour span of natural time. "Day" describes a state in which we are turned toward the Lord, and are receiving light (which is truth) and heat (which is a desire for good) from the Lord.
Ezekiel 10:1-4
1
Then I looked, and see, in the expanse that was over the head of the cherubim there appeared above them as it were a sapphire stone, as the appearance of the likeness of a throne.
2
He spoke to the man clothed in linen, and said, Go in between the whirling [wheels], even under the cherub, and fill both your hands with coals of fire from between the cherubim, and scatter them over the city. He went in as I watched.
3
Now the cherubim stood on the right side of the house, when the man went in; and the cloud filled the inner court.
4
The glory of Yahweh mounted up from the cherub, [and stood] over the threshold of the house; and the house was filled with the cloud, and the court was full of the brightness of Yahweh's glory.
