The meaning is quite obvious, is it not. It can only happen once, and it will never be repeated again. But there may be some argument about this. Take the matter of having kids, and then bringing them up. It must be difficult for good mothers and fathers to tell any one of their kids that he or she is their personal favorite. How to appease the very young minds, still to this day. But a wise mother or father will always think once or twice before giving the answer.
And it is quite easy for them to be completely honest about the response. Wisdom, honesty and integrity go hand in hand, but it is never an overnight occurrence. It is nurtured and grows with experience. So, the wise mind is able to tell the child that it loves each one in equal measure. But there is one experience in the parent’s life that just cannot be compared. The good parent can acknowledge; all the newborn photography near me bears this out.
The proof is in the pudding, long after the bun in the oven has been removed. A good photographer is able to perfectly capture the elation of the first-time parents. That special moment of experiencing something miraculous for the very first time will never be repeated. But at least it can be kept in perpetuity for all time’s sake. On the mantelpiece, on the kid’s bedroom chest of drawers, on the office desk.
Or in a keepsake photo album to be brought out every once in a while on special occasions when close relatives or good friends pop around. Of course, there are many other once in a lifetime moments that can be captured and shared. You will know of these.