Swami Vivekananda relating his vision of Lord Buddha

One day while meditating, “there flowed in my mind a current of serene bliss when I kept it still, devoid of all objects. I felt for a long time even after the end of the meditation, a sort of intoxication under its impulse.

So, I did not feel inclined to leave the seat and get up immediately. While I was sitting in that condition at the end of the meditation, from the southern wall of that room a luminous figure stepped out and stood at a little distance in front of me, filling the room with a divine effulgence.

It was the figure of a Sannyasin (monk) in ochre cloth, absolutely calm, shaven-headed, and staff and Kamandalu (a Sannyasin’s wooden water-bowl) in hand.

The man was tall and largely built. There was a wonderful radiance on his visage, yet there seemed to be no play of emotion on it. In his face was a calm so deep and so established, that it seemed, as if both pain and pleasure had been forgotten during infinite time.

He gazed at me for some time and I too gazed at him in speechless wonder. I felt very much drawn towards him. He walked forward towards me with a slow step, with his eyes steadfastly fixed on me, as if he wanted to say something.

But I was seized with fear and could not keep quiet. I got up from my seat, opened the door and walked out of the room with rapid step. The next moment I thought, ‘Why this foolish fear?’ I made bold and went back into the room to hear the monk, who, alas, was no longer there.

I waited long in vain and felt dejected, repenting that I had been stupid enough to fly away without listening to him. I have seen many monks, but never have I found such an extraordinary expression in any other face. That face has been indelibly imprinted in my heart.

It may be a hallucination, but very often it comes to my mind that I had the good fortune of seeing Lord Buddha that day.”

– Swami Vivekananda relating his vision of Lord Buddha, to Swami Saradananda (Sri Ramakrishna the Great Master, page 1134-1135); Sister Nivedita (The Master as I Saw Him) and Sharat Chandra Chakravarty (Complete Works of Swami Vivekananda, Volume 7).
http://www.spiritualbee.com/posts/buddha-appeared-before-swami-vivekananda/