A new chapter opens with two quietly powerful words: once again. The ninth chapter had covered a vast landscape of knowledge. Yet Krishna does not stop. He speaks again — not because He enjoys hearing His own voice, but because Arjuna's welfare drives every word.
Two terms reveal the heart of this moment. Preeyamanaya tells us that Arjuna is dear to Krishna. Hitakamyaya tells us that Krishna speaks for Arjuna's good. Love and welfare together — that is the foundation on which the Gita rests. A teacher who loves the student, and a student who trusts the teacher. Without that bond, no amount of knowledge takes root.
This is the nature of a true guru. The lesson is not over until the student has truly understood. Repetition is not a sign of the teacher's impatience. It is a sign of the teacher's care.