Chasidut zu Jeschijahu 1:17

In the gemara at ohr to the 14th we search for chametz I already explained that the chametz is the yetzer hara [inclination to selfishness] as the Rambam explained that chametz comes from the expression for stealing, from the verse (Isaiah 1:17) 'aid the wronged', and therefore chametz alludes to the yetzer hara, since whoever goes according to the advice of the yetzer hara steals from their [soul] root. Therefore one needs to burn the chametz on erev Pesach and to make preparations so that the great holiness that is revealed in night of Pesach will infused itself upon oneself, since Pesach comes from the expression leaped and skipped because in all festivals holiness does not come to a person in one moment, a person needs to continue the holiness with the prayers of Night, Morning and Afternoon. But on Pesach, the holiness comes to a person in one moment, like the expression to skip, as we explained, and therefore there is the need for preparations, since even though the shining light comes, even though it does come, a person needs to cleanse oneself so as to be able to receive the shining light. For example,the sun, even though it shines strongly, the windows need to be open, because if they are closed the sun cannot shine within the house. And in all festivals one needs to continue the holiness on oneself, through the prayers, as the verse says 'that you will call them in their time, a holy convocation' (Leviticus 23:2) - that is one needs to call [to convocate] the holiness. But on Pesach the shining light needs to come in one moment, because 'in haste you came out of Egypt'(Deuteronomy 16:3) Chipazon [haste] its letters are chet"peh [and] zayin"nun, that is to say all the holidays the holiness comes from the Holy One as male [zayin] and female [nun], groom and bride; that is, the more the bride (the people of Israel) adorns herself all the more the groom (the Holy One) comes closer and closer to her. But on Pesach, because Israel needed to get out from Egypt, because were they to stay there for yet another moment they would not have been able to get out of there, and this is why the redemption needed to be in haste [chipazon] that is to say covered [from chupah] from the way of the male [zayin] to the female [nun], so the shining light comes in a skip and a leap but regardless [that fact] obviously a person needs to prepare oneself, as explained above in the simile of the sun and the windows.