The mind is a universe and can make a heaven of hell, a hell of heaven.

The mind is its own place, and in itself / Can make a Heaven of Hell, a Hell of Heaven. / What matter where, if I be still the same...

Love in your mind produces love in your life. This is the meaning of heaven.
Fear in your mind produces fear in your life. This is the meaning of hell.

Mind is reality. with one thought you can be in heaven, with another, in hell.

So what is happening in your mind is your creation. Isn’t it so? World around you is just giving you information. The world is throwing pleasant information into you, unpleasant information into you; everything that is happening, it is just throwing it into you. What you do with this damn information is definitely yours. Yes or no?
When the activity of the mind is yours, the suffering that the mind generates is definitely your making. Would you generate unpleasantness and suffering for yourself if your mind was taking instructions from you? No. That means your mind is out of control.

Every experience you have ever had has been shaped by your mind.

The mind is everything; what you think you become

Hell is a state of mind - ye never said a truer word. And every state of mind, left to itself, every shutting up of the creature within the dungeon of its own mind - is, in the end, Hell. But Heaven is not a state of mind. Heaven is reality itself. All that is fully real is Heavenly. For all that can be shaken will be shaken and only the unshakeable remains.

The mind is everything. What you think you become.

If you live consciously, if you try to bring consciousness to every act that you go through, you will be living in a silent, blissful state, in serenity, in joy, in love. Your life will have the flavour of a festival. That is the meaning of heaven: your life will have many flowers in it, much fragrance will be released through you. You will have an aura of delight. Your life will be a song of life-affirmation, it will be a sacred yes to all that existence is. You will be in communion with existence — in communion with stars, with the trees, with the rivers, with the mountains, with people, with animals. This whole life and this whole existence will have a totally different meaning for you. From every nook and corner, rivers of bliss will be flowing towards you. Heaven is just a name for that state of mind. Hell means you are living so unconsciously, so absurdly, in such contradiction, that you go on creating more and more misery for yourself.

Your whole experience of life is in your mind.
Focus on your internal world, not external world.

According to the Bible, God created the heavens and the Earth. It is man’s prerogative - and woman’s - to create their own particular and private hell.

A mind not to be changed by place or time.
The mind is its own place, and in itself
Can make a heav'n of hell, a hell of heav'n.

It's all in the mind.