Chasidut zu Mischlej 15:15

"All the days of poverty are wretched" (Proverbs 15:15) -- In light of what our Sages of blessed memory taught (Nedarim 41a), "Poverty means nothing but a lack of wisdom", this verse means the following: "All the days of poverty" - this is lack of wisdom - "are wretched" - meaning, your prayer and your learning are nothing to the Blessed One, because they are lacking in awe and in love, and they do not fly upwards (cf. Tikkunei Hazohar 10). On this verse, the Talmud (Bava Batra 146a) questions - but what about Shabbat and festivals? Surely on these days every person is aroused from above, and prays in a state of attunement. The answer is given that there is a change of habit, which causes wretchedness: you see yourself praying with attunement and are filled with pride and grandeur. Seeing yourself rise to this high level, even so, there is wretchedness since "a change of habit leads to sickness of the bowels" - the evil urge only acts during eating and drinking (Zohar 1:110a), and in this sense, you are filled with pride. This is evident to those who can understand.