"It would be easy to dismiss the question by saying: “Yes, after a prolonged period of intense austerities and meditation, while I was living at Swaragashram and when I had the Darshan and blessings of a number of Maharishis, the Lord appeared before me in the form of Sri Krishna. But that would not be the whole truth, nor a sufficient answer to a question relating to God, who is infinite, unlimited and beyond the reach of speech and mind. Cosmic Consciousness is not an accident or chance. It is the summit, accessible by a thorny path that has steps—slippery steps. I ascended them step by step the hard way (How God Came Into My Life)"
January 1, 1970
https://en.wikiquote.org/wiki/Swami_Sivananda