These are far from difficult tasks- while the local Thornbranch Scamp sprites are very damaging thanks to their ability to summon a pair of temporary copies of themselves with which they can attack, the copies aren’t very durable and don’t last too long.  They lack other abilities than this, so as long as you don’t try to take on more than one or two of them at a time, there should be very little danger.  The charms are similarly easy to handle, being obvious large red ropes than hang off of the trees nearby.  Wander North or South, whichever you like (or whichever has gatherable resources for you) and it should be completed within a couple of minutes.

Completing your tasks garners you more praise from Shang, who calls you one of his greatest students, and the aged monk anticipates that you will become unlike anything else in the world.

At which point, he gives you one last quest.  He tells you that soon your journey will be undertaken without him, and requests that you stay for a bit and listen to him so that you can use his knowledge to improve your own and become all the greater for it.

Master Shang then gives you a speech.  He tells of the thousands of years that the Pandaren have passed their lessons on from teacher to student.  He declares that the time is ready for him to plant his own staff in the Wood of Staves- and to pass on.  The Pandaren, he says, have lived on the back of the great turtle Shen-zin Su, for a very long time- but nobody has spoken to the great turtle in hundreds of years.  The creature is ill now, endangering not only itself, but also the whole Pandaren race.  With the spirits of the elements gathered, though, you are to speak to the turtle.  Shen has had Aysa and Ji bring the spirits to the Wood of Staves, where you can meet them and speak to Shen-zin, so you might learn what can be done to save the Pandaren race.  Shang tells you that somewhere within you is a great hero, and so he has left the fate of the land in your hands.

His sobering speech done, Master Shang.... well, he doesn’t quite die so much as fade away.  This leaves you to find your own way to Ji and Aysa, not that it’s terribly difficult: the Wood of Staves ends to the West, and that is where the cliff lies.  It makes the wood a rather long but thin shape, extending North-South.