PURITY OF THOUGHT
Man’s mind is his very essence. Wherever your thoughts are, that is where you are – all of you.
This is why it is so important to avoid all evil thoughts, because otherwise that is where your place will be.
You must force yourself to think good thoughts in order to be worthy of know ing God. Then your place will be with Him and you will be merged with Him. The greater your perception of God, the more fully merged with Him you will become, and then you will attain eternal life.
Likutey Moharan I, 21
Rabbi Nachman of Breslov
“It is a great mitzvah to be happy.”