EINSTEIN AND THE IMAGINATION. The following is one among a number of sources in which he refers to the imagination:
http://www.quoteworld.org/category/imagination/author/albert-einstein

BTW, I understand that Einstein said that space and time are one and the same--a space/time continuum. I presume this means that there is an infinity of space and an eternity of time--in which forms and objects like planets, stars and galaxies do appear as related, and relative, to one another. I think of all things as being in the eternal NOW, which I think of as GOD--not as a god, or God, or as a separate being, but as being itself.

G~O~D--Now & ForeverIS:Nature, Nurture & PNEUMA-ture, Thanks to Warren Farr&ME AT www.unitheist.org