that's where some creative thought comes in.. ummm future..
again.. the unborn baby, a new plant bud.. etc.

actually, my Christmas Nativity post last year is another example.. there's past, present being the wise men (member's head shots) of today, & the cup & saucer/aliens being the future.. problem with that one is it's already been "published" in my gallery & would be considered a "collaboration" & i can't enter :( lol