Trying to understand what our bodies will be like in heaven is much like expecting an acorn to understand his destiny of roots, bark, branches, and leaves. Or asking a caterpillar to appreciate flying. Or a peach pit to fathom being fragrant. Or a coconut to grasp what it means to sway in the ocean breeze. Our eternal bodies will be so grand, so glorious, that we can only catch a fleeting glimpse of the splendor to come...
You and what you will one day be are one and the same -- yet different. "Our lowly bodies... will be like His glorious body." Astounding.
-- Joni Eareckson Tada in “Heaven: Your Real Home”