Only if a person gains the privilege of feeling the pleasure of the Sabbath day in this world, and by so doing achieves the aspect of the Sabbath's neshama yetera [additional soul]; only then will a person gain the privilege of also enjoying the pleasures of the "day which is Shabbat in its entirety" – the World-to-Come. Indeed, whoever is of a ready heart can sense the feeling of pleasure and sweetness of the Sabbath day, for the sky is more luminous on the Sabbath, the air in the world more clear, and the faces of people more beautiful and shining, as it says in the Midrash; everybody is more serene on the Sabbath. How can one not, therefore, feel the pleasure of the Sabbath.."