Combining yoga (asanas); qigong meditation and raw vegan diet with Buddhism

It is a beautiful thing what you are doing. Respecting your body, the environment and all beings is the first path of the Bodhisattva.

Respect is not necessarily attachment. Buddhism recommends we have a healthy belief in impermanence, but not so much that we ignore caring for everything.

The Buddha warns his followers to practice hard while they still can. Because sickness, injuries and death can occur at any moment, and interrupt their practice, they must not put off practice for later. Buddhism is not found in sutras and big and ancient words, it is found in the practice of seeing the truth in every moment.

We obviously can't practice if we are losing consciousness due to an injury, or delirious with fever. We must take medicines at this moment and respect that our practice is dependent on causes and conditions, such as our good health.

We likewise cannot practice if we are lost in luxuries and delusions of reality, mistaking our comfortable conditions for permanent bliss.

The legend of the Buddha shows that Siddhartha, before he became the Buddha viewed his body as a defilement, hunger as a prison sentence that kept him trapped in this world, and practiced severe starvation penance. He couldn't sadly make meaningful spiritual progress towards Buddhahood with this belief system. When he learned to respect his human condition and eat food, his spiritual progress rapidly advanced.

By observing the beauty of nature interacting with our body, in a vegan diet, in asanas, in wild natural situations where our body helps us survive, we can practice a form of Vipassana or deep insight. We see that there is no independent existence, that all beings are interdependent.

We must see that the idea of "I" is a compounded reality. The "I" who is well rested, eating healthy and exercising is very different from the "I" who is sleep deprived, intoxicated and eating junk food. Thus we are our good or bad habits, we are nothing more than our thoughts, actions and speech in this present moment. By observing our body in sickness and health, in youth and old age we see the impermanence of reality.

Thus, respecting the body can lead to insight, but there is a danger that it can also lead to hubris and pride. If we spend a lot of time in front of the mirror basking in narcissism, that's dangerous :-)

We must learn not to fear the environment. We cannot control all aspects of our life. Eating healthy vegan food is good, but if we can't find good food one day, and we must eat something, we must learn to make do with whatever is available with no regret or sadness.

The Buddha was often offered fancy meals in palaces when Kings and rich men invited him and his followers for lunch. No matter how good the hospitality, he didn't linger on in the palaces even though he could have. He kept wandering into forests and little villages, making no allowance for comfort. So one day he would eat in the palace, the next day he would be in the forest and drinking muddy water and eating grass to survive, but he wouldn't make a face or miss for one moment yesterday's lunch in the palace.

He never recommends poisoning the body by eating poisonous mushrooms or berries, so some care must be taken, but not so much that we fall prey to comforts and luxuries.

On his last meal, he knew the food he was being offered was dangerous (traditions do not agree on whether it was rotten pork or mushrooms or something else). In any case he knew it was toxic, so he asked his followers to not eat the food, and have the rest of the food buried. However, he ate the meal with the same beatific smile, and passed away with no regret about losing his body.

That is the kind of wisdom and detachment we must follow.

Update: This health update from Plum Village, about the recovery of Buddhist teacher, Ven. Thich Nhat Hanh or Thây from a life threatening stroke is a good teaching on enjoying the wonderful joy of being, whatever one's condition.

There are a few things which come to mind that Buddhism may say about your current spiritual path;

Surely, the practices you have described will bring you some beneficial results. But without proper insight, guided by the Noble Eightfold path, they will not lead you to liberation from old age, suffering, and death. And this is evident by the way in which you describe the body. The body is in fact a prison, not a temple. This body is not ours, and by its very nature seeks out death. Pursuing health is a useless endeaver, as the Buddha said :

"'I am subject to aging, have not gone beyond aging.' This is the first fact that one should reflect on often, whether one is a woman or a man, lay or ordained.

"'I am subject to illness, have not gone beyond illness.' ...

"'I am subject to death, have not gone beyond death.' ...

Upajjhatthana Sutta AN:5.57

And in fact, the mind has far more affect over the body than the body does over the mind, insofar as the mind is developed. An undeveloped mind can and will suffer in even the most healthy of bodies, but a well developed mind needs not suffer in even an ill and dying body. In this way, the two do not mutually affect each other, and therefore pursuing healthy things for the sake of health is of no benefit. Such clinging to your health and well being will only lead to suffering, as sooner or later it will come to an end.

As for asanas, or qigong meditation, I do not know. But unless their teachings ascribe the application of the Noble Eightfold path, they are not in line with the teaching of the Buddha, and will not lead one to final liberation.

I hope this helps clarify some things with your current practice in regards to the teachings of the Buddha.