OK I confess I donât have a direct quote from Sujato Bhikkhu or Thanissaro Bhikkhu saying that meditating on the counterpoint sign in the Visuddhimagga is a later development. However I can point to books from Thanissaro talking about the jhanas as states in which one is aware of oneâs whole body. I can also say that in the Samyutta Nikaya in the teachings on the 16 exercises and the four jhanas I have not seen anything about a counterpoint sign. Below is a summary of my research on this.
From the Visuddhimagga there is discussion on meditating on the counterpoint sign to gain access concentration and enter the first jhana.
Visuddhimagga translated by Nanamoli BPS 2010. P.133
Ledi Sayadaw teaches this way to enter access concentration in his manual on the 16 exercises of mindfulness of breathing called Anapana Dipani.
Ledi Sayadaw (BPS 2000).
Ajahn Lee, a student of Ajahn Mun, taught mindfulness of breathing and mindfulness of the whole body as the way to get into the jhanas and develop the jhanas in his teachings on the 16 exercises of mindfulness of breathing. His student Ajahn Fuong and his student Thanissaro Bhikkhu teach the same.
Ajhan Lee Dhammadharo, Keeping the Breath in Mind and Lessons in Samadhi, trans. Thanissaro Bhikkhu, Seventh Revised (Metta Forest Monastery, 2017).
Thanissaro points to discourses in the Pali Canon that describe jhanas as including awareness of the whole body. He includes this in his teachings on the 16 exercises.
Bhikkhu Thanissaro, Mindful of the Body (Valley Center: Metta Forest Monastery, 2016).
Bhikkhu Thanissaro, With Each & Every Breath: A Guide to Meditation (Valley Center: Metta Forest Monastery, 2013).
Based on Sujato Bhikkhuâs work which points to the Samyutta Nikaya as possibly being the oldest layer of discourses in the Pali Canon we can look at the teachings on the 16 exercises and the four jhanas. I have not done an exhaustive search into the anapanasamyutta and the jhanasamyutta but but from what I have seen so far they donât mention meditating on the counterpoint sign. The most straightforward interpretation of the 16 exercises would say that one starts with mindfulness of the breath and the whole body, then one goes into the jhanas based on that, then one does the heart-mind practice, and this culminates in realizing nibbana through contemplation of impermanence.
BY Buddhaghosa understanding I mainly mean what he says in the Visuddhimagga.