“I think once you know how to recite the Praṇava
orally you will be able to do it silently.
And perhaps each time you can add a little meaning
to it as well as find a little more meaning in it.
The best way is to begin orally and
then transfer it to a mental recitation.
Then you can easily use it in your Yoga practice.”
– TKV Desikachar Religiousness in Yoga
‘Various Approaches to Yoga’
Chapter Seventeen Page 238

“In the indian tradition we have the idea of Varṇa–Āśrama–Dharma
and Dharma–Artha–Kāma–Mokṣa.
According to a persons environment, development
or stage of activity in life, the choice must vary.
Which will help a person grow at the body and mental level?
So as such it should be Sṛṣṭi Krama for a certain level of people.
In old times. up to the age of 24 years should be in the direction of Sṛṣṭi Krama.
In other words more risk taken with the body, more ability to grasp ideas.
i.e. Vinyāsa almost like gymnastics.
Not suitable for older person starting Yoga.
We need to be open to this beautiful idea of adaptation.”
– TKV Desikachar France August 1983