When Harry was anywhere the Dursley residence, his magic felt 'restrained' like it was bound with chains, while at his hideaway it felt a lot looser and happier of sorts. But here in the forest, it was practically jumping around inside him and Harry had the image of the puppy running in circles while chasing its tail in happiness. Harry had read about the Wicca worshiping Mother Nature and the Red Indians of America, and considering the times he had to tend to the Dursley's gardens or his own garden back at his hideaway, he could make a supposition that having a connection to nature helped his magic in more ways than one. He was thankful for his magic every day since he started to train with it, but standing in the forest, he decided to take a leaf from said Wicca and tried reaching out to the forest with his magic to let it out of sorts, and the effect was immediate as it seemed to rejoice at the freedom and at the natural energy around him, infusing him with more energy than he had ever felt and affecting the forest area with its presence.
Harry decided to keep mum about the sudden appearance of flowers flourishing at the camp site and the increased numbers of small animals visiting them.
Regardless of that little mishap, Harry could barely contain the exhilaration and sense of empowerment he got from letting his magic loose, and his Force-sensing was going into overdrive to the point he could even count the number of petals on a flower about a kilometre away from the entrance or to feel the water from a nearby stream. He could feel the plants working their functions as the sun hit them or even the animals' heartbeats as they went about their activities. It was all so exciting that he knew he was going to be needing another notebook for this observation alone.
But enough of that, time for some lessons, which for some odd reason, be it a coincidence, preordained, or even sheer dumb luck, that the courses offered at the summer camp would be the key to helping his problem and increasing his arsenal.
There were mandatory classes at the camp like the languages class, but majority of his classmates chose the more 'attractive' courses at the camp, meaning those that allowed them to be outside roughing about in the open field as opposed to being stuck indoors. Harry being one of the more studious chose the latter to learn more about the world outside of Britain and found himself immersed in the world of languages, music and crafting. The one that stood out for him was the symbology class that at the time showed simple pictograms, icons and symbols for them to try out and decipher. Most of the small class had stopped after the first lesson, with a couple more after the second, but Harry pushed on to learn about the language that could be used with images. But the bit that settled the matter for him was when he was drawing them out on the third night while considering his problem back in Surrey. He accidentally pushed some of the Force during his more erratic thinking through the pencil and the symbols lit up briefly with some type of effect being created before the paper burnt instantly, leaving behind ashes and a new found discovery for Harry to try.
It did not take long for Harry to get results from his experiments and a new desire to incorporate this into his array of talents. The teachers had spoken of pictures and symbols used in the past to speak a language, but in his experiments, Harry found that he could do a lot more than just 'speak the language'; he could apply it in ways that he could reserve his powers while the symbols do the work for him. He could combine different pictures and symbols to create different effects that were previously unreachable to him with his magic. He needed to read up on it more if he wanted to use it more proficiently, not to mention a proper medium to write said language without it burning up.
That was when his crafting lessons came in.
Harry had played around with the small pieces of metal that was on the floor when the blacksmith was removing them from the small art piece he was demonstrating to the crowd. He had tried painting the symbols on wood at first and then rocks which got a better result depending on the type of rock, and he figured that metal being a stronger medium ought to be a better alternative to rock and definitely superior to paper. He decided to go back to the basics and used the symbols for light to create a light source similar to his Force Ball.
Good thing he went back to the basics while in the forest behind the cabin he was sharing with, because his first attempt got him re-enacting the same accident but with a few bushes of thorns near the campsite.
Not a pleasant feeling removing the thorns from his legs, but at least he was luckier than Dudley who got them introduced intimately between the legs when he was not wearing pants. Even Harry had to offer a moment of sympathy at that.