He didn’t. He kept inquiring, exploring about what inner space is. Here is a quote from The Awakening of Intelligence , a discussion with Jacob Needleman in 1971
Krishnamurti: Space, we are talking about that for the moment, we can use that word. First I must see very clearly the space between two thoughts.
Needleman: The interval.
Krishnamurti: This interval between two thoughts. Interval means space. And what takes place in this interval?
Needleman: Well, I confess I don’t know because my thoughts overlap all the time. I know there are intervals, there are moments when this interval appears, and I see it, and there is freedom there for a moment.
Krishnamurti: Let’s go into this a bit, shall we? There is space between two thoughts. And there is space which the centre creates round itself, which is the space of isolation.
Needleman: All right, yes. That is a cold word.
Krishnamurti: It is cutting itself off. I consider myself important, with my ambition, with my frustrations, with my anger, with my sexuality, my growth, my meditation, my reaching Nirvana.
Needleman: Yes, that is isolation.
Krishnamurti: It is isolation. My relation with you is the image of that isolation, which is that space. Then having created that space there is space outside the barbed wire. Now is there a space of a totally different dimension? That is the question.
Needleman: Yes, that embraces the question.
Krishnamurti: How shall we find out if the space round me, round the centre, exists? And how can I find out the other? I can speculate about the other, I can invent any space I like - but that is too abstract, too silly!
Needleman: Yes.
Krishnamurti: So is it possible to be free of the centre, so that the centre doesn’t create space round itself build a wall round itself, isolation, a prison - and call that space? Can that centre cease to be? Otherwise I can’t go beyond it; the mind cannot go beyond that limitation.
THE AWAKENING OF INTELLIGENCE PART I CHAPTER 2 2ND CONVERSATION WITH JACOB NEEDLEMAN MALIBU CALIFORNIA 26TH MARCH 1971 ‘ON INNER SPACE; ON TRADITION AND DEPENDENCE’