Well, I don’t think I said we shouldn’t “worry” but worry isn’t a good thing anyway!
I’m not Indian or Asian so I don’t swim in those cultural waters. We can compare what this process of inculturation there is about with what our own tradition has historically done, in my case, the Ukrainian/Ruthenian tradition of Kyivan Rus’. I see many points of similarity in that respect and our own feelings of “Oh my gosh, what is that all about?”

has to do with the fact that Asian culture, especially when intermixed with Catholicism, is indeed quite different from ours.
Certainly, there are dangers in all this. But it is up to the Indian Christians “on the ground” so to speak to study the traditions of India and make the necessary links with Christianity. So did the Cappadocian Fathers and St Thomas Aquinas.
As for Dom Bede Griffiths, he is well respected by both the Catholic and Orthodox as well as Protestant communities in India, not to mention the non-Christian communities there. I don’t pretend to fully understand his thought and contributions, but I tend to trust that he, in his vocation and many life achievements, made headway in his missionary undertakings when, historically, European Christianity simply failed for refusing to distinguish between what is “Christian” and what is “European.”
European Christians committed the idolatry of seeing European culture as the only valid medium by which Christianity is to be communicated, very much like the early Christians who were Jews and expected other Christians to be circumcised etc.
As for yoga and even Zen meditation, these practices can be, and are, Christianized. In Japan, for example, there are Christian Zen temples. I once took a yoga course in a church hall where the focus during the exercises was on the large Crucifix on the wall. Prolonged periods of concentration and silence like that with a focus on Christ on the Cross is a very spiritually refreshing experience.
In North America, we pray far too quickly to “get through” the Office, the Rosary etc. I’m not against fulfilling a certain quantity of prayer each day, God forbid! But we need to balance our North American need for “achievement” and “quantity” with silence and an enhanced quality in our spiritual meditation, reading and prayer.
Hindus wear a three-banded cord like sash over their shoulder. Fr. Roberto DiNobili SJ adopted this practice and said that the three bands represent the Holy Trinity. The Celtic missionaries adopted much of the pagan Celtic traditions, simply “saining” them with the Sign of the Cross and changing their meaning. The Cross of Christ transforms culture and that is our calling in India as well as in North America where, as far as the latter is concerned, a new kind of paganism has gripped our culture here.
Again, ashrams and such aren’t my “cup of tea” because I am not Indian nor Asian. Eastern Christianity as we know it through the Eastern Catholic Churches of Europe are very much part of the European heritage, even though they derive from the Indo-European cultures.
What is “Byzantine” is not “Eastern” in the Asian sense, in fact Byzantine is “New Roman” and when the Oriental Orthodox saw the controversy over icons in the 8th century, they regarded it as a problem in the “Roman province of the Church” meaning both Old and New Romes taken together. So we’re not that far East.
Let’s leave the inculturation of the Asian Christian traditions to those who are dedicated to its study and practice. It will seem foreign to us, to be sure. That shouldn’t raise red flags for us or make us uneasy. North Americans who think they can practice Asian traditions like yoga and zen freely and without guidance are under a strange delusion given the immense cultural gap between them and Asia.
I’ve said enough and those are my thoughts on the matter!
Cheers,
Alex