Birkat hamazon

The righteous man eats to his heart’s content,
But the belly of the wicked is empty.

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The second: That his thought resemble the thought of the Crown. [Just] as that Wisdom (Chochmah) does not ever cease to think good thoughts and evil does not intervene - as It is complete mercy, and there is no judgment there, nor any hardness at all - so [should] a man's thought be always free from anything ugly. And [just] as It is the secret of the Wisdom of the primordial Torah and It is never lacking the secret of the Torah; so must he not divert himself to any diversion from the thought of Torah and [from] thinking about the greatness of God and His good actions, bestowing good, and similar to this.

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So, too, in the matter of Grace after meals and all benedictions, whether those connected with the partaking of food or with the performance of precepts, [to be recited] with kavanah, to say nothing of the kavanah of precepts “for their own sake.”

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