You may know Hinduism, but you don’t know Christianity.
Your knowledge is superficial, and you have fallen into an either/or mentality regarding Christianity.
Sometimes one must suffer and be out in cold storms, but it is prudent to come in out of the rain when possible.
But I can’t say I do yoga. It would be unfair and disrespectful to those who in good faith do yoga to say that I who have robbed yoga of the asanas and purposely neglect to do the rest, practice “yoga.”
You are arguing Christianity as if you are a sola scriptura Protestant. The Catholic faith is not based on the Bible. The Bible is only part of the faith and came from within the Church. And when something is not in the Bible, it doesn’t follow that we cannot do it. Nowhere in the Bible does it say we may play basketball as recreation, but I can say with certainty that it is not a sin to do so and is not heretical.
The body is important and it is wrong to harm another body or my own body. It is good to take care of it. We are to be good stewards of all that we are given. The Apostle Paul admonishes Christians to drink a little wine for the sake of their health.
You make assertions based on your own prejudices and opinions, but have no facts to back them up.