Do trees actually provide healing or are they simply being an advocate for the person to receive divine help by applying their own intention for that to happen?

In a broad sense all consciousness comes from Creator because that is not only the origin, it is the wellspring for ongoing inspiration and the way people apply themselves to any task, especially when they are in harmony with divine principles and to the greatest extent when they are communicating with the divine purposefully. So even a conversation between two friends will resonate with the divine without them being aware of this, but it can in fact summon a divine response if people are in harmony and in a partnership with the divine personally. When you turn to nature, and especially trees who are perfectly adapted to be a sentinel and a partner in communication, your request for help will cause them to summon divine energies; that is how they do their work after all. When they scavenge the environment to pull in negative energies for grounding, they enlist divine help to do the accumulation and focus of what needs attention and to be removed to purify the air. So, in a sense, it is like going to a human healer who is in divine alignment and partnering with the divine, the client may believe in the power of the healer to make something happen and even summon a miracle with their special touch, but it will truly be coming from the divine realm, if there is anything meaningful that can happen. People have only meager healing ability on their own; it is when they partner with the divine that significant benefits follow. The same is true in working through any aspect of nature, including trees. They know through their innate makeup and conscious awareness how to go about matching energies to solve problems—that is their skill. So in a sense, it is like having a telephone switchboard with incoming messages making requests, and then patching them through to the divine realm and having an answer come forth they connect to the same line, so it goes to the caller making the initial request for assistance. So this is not a high-level cognitive awareness, as in a human mind, but a very adept and highly attuned energetic transducer that will be very sensitive to consciousness in the environment as that is its primary function, to detect consciousness and summon an appropriate energetic response from the divine realm to help with the disposition of the intent present. If it is an energy of discord, anguish, anxiety, hatred, or rage, for example, there will be a suitable divine antidote capable of modulating and neutralizing the energetic power to cause something harmful. So this entire apparatus is designed to help keep things in balance through fostering a neutrality of energies that removes discord. There can be considerable positive energy and that is all allowed and will not be altered or diminished, so trees are designed to seek and filter out trouble from the environment to bring it back into balance.