[206] Which, on that occasion, is one-pointedness of mind (cittassa ekaggatā)?
That which on that occasion is stability of the mind (citta), steadfastness, steadiness, non-wavering, non-distraction, the state of an unwavering mentality, calm, the faculty of concentration (samādhindriya), the power of concentration (samādhibala), right concentration (sammāsamādhi), the concentration factor of awakening (samādhi-sambojjhaṅga), a factor of the path (maggaṅga), included in the path (maggapariyāpanna) — this, on that occasion, is one-pointedness of mind.
English translation from the Pali (Siam Raṭṭha edition) — under review, not for citation.