You can learn suppress and fly from the first Sage. This can be completed at any PL but it may require at least 50k PL before he'll teach you, just look for a crystal nearby (exa crystal) and give it to the Sage. This will raise suppress and fly to 50%.
You can learn meditate from the Sage deep within the cave. At any PL, no combat required. From the first room head east and all the way down, past the 500k and 1m mobs and wait within (might have to be resting) the Master's Sanctuary. After a random time you'll receive a message saying that you have gotten a blessing and you'll get a Small Rainbow Crystal. Take this back to the master all the way back up and north and all the way through the other cave. Give the crystal to the Sage of the Soul and you'll get more meditate!
You can learn punch, kick, and energy ball, from the Sage of Power. These are likely worth skipping if you have more than 50% kick, punch, or energy ball. He has two separate quests for you. First go slay a bunch of beasts, they are 10k PL, and then return the shard to the Sage of Power. You'll need to be at least 50k PL to kill the monster for this one. This will teach you kick and punch, but you likely already have more % than he'll teach you. I believe he will only raise it to 50%. When you're around 50k you can find the cave in the area with the beasts and icers and SAY HRUKTHAR, kill him and take the head back. Likely you have more energy ball then he's willing to teach you.