The individual whole life is just like the whole course of climbing a mountain. Initially, we are full of energy and are vigorous, we climb with ease, even run upwards at times. Gradually, we begin to feel tired of it. However, thanks to we have set our face to reach the submit, and reluctant to waste the foregoing endeavor, we decide to move on. In spite of a lot of difficulties may arise: the cragged road; the severe weather , But we persist with it, we setback all these difficulties, just keeping climbing upwards; finally we make it! At the submit, we are entitled to enjoy the most beautiful view.
When we descend, it’s much easier. We are in the mood to enjoy the view aside the roads. But be careful, descending is more dangerous than climbing!
As going to the end of the travel, we are apt to recall the roads we have covered. We feel all sorts of emotion surging with us: the proud of getting to the submit and the wonderful view we have enjoyed; the grievance about fatigue we have endured; the regret for missing a lot of beautiful scenes.
So, in the travel of our life, just be persistent, always with strong will, we can have our dreams accomplished as long as we try! While entertainment is also needed, when we feel exhausted, just stop and take a rest, and then resume with great might. In this way, we will be satisfied and regretless!

Good job.
I agree with you that the individual whole life is just like the whole course of climbing a mountain