Shakyamuni awakened to this

Bhaishajyasena, many are the Dharmas I have taught. Bhaishajyasena, I engaged in arduous practices for many hundreds of thousands of countless aeons, not for the sake of enjoying sovereignty, not for the sake of the enjoyment of a way of life, nor for the sake of enjoying power. I engaged in arduous practices, Bhaishajyasena, for the purpose of understanding the nature of reality. And I did not actualize the unsurpassed, perfectly completed enlightenment until I heard this dharma-paryaya.

Bhaishajyasena, at the very moment I heard this Sanghata dharma-paryaya, on that very day I awakened into unsurpassed, perfectly completed enlightenment. Bhaishajyasena, profound is this dharma-paryaya. Bhaishajyasena, hearing this dharma-paryaya is rare even within hundreds of thousands of countless aeons. ~ Sanghata sutra