Likutei Moharan, Part II 71:7/ליקוטי מוהר"ן·תנינא ע״א:ז׳

17. Now, Supernal Pleasantness flows continuously. Nevertheless, one must have a vessel with which to receive the influx of Supernal Pleasantness. And know! the vessel with which to receive flames of love from Supernal Pleasantness is forged through charity. For charity is the generosity of the heart, as it is written (Exodus 25:2), “from every person, as his heart urges him, you shall take My donation.” Generosity is that the heart is open and benevolent. As a result, the pathways of the heart open and become a vessel for receiving the flames of love drawn from Supernal Pleasantness, as mentioned above.

2Now, there is charity of the Land of Israel and there is also charity of the Diaspora. Yet, the essence is the charity of the Land of Israel, through which a vessel is forged for receiving from Supernal Pleasantness, which in turn leads the begetting of offspring, as mentioned above. This is the concept of “Sow for yourselves [by giving] to charity” (Hosea 10:12), because the begetting of offspring comes about primarily through charity, as mentioned above.

3And this is the concept of “These are the offspring of Yaakov—Yosef” (Genesis 37:2). That is, the begetting of offspring comes about primarily through Yaakov and Yosef. Yaakov is the concept of charity, as it is written, “You execute justice and charity in Yaakov” (Psalms 99:4). And the begetting of offspring is primarily through charity, {the vessel for receiving the influx of Supernal Pleasantness. And, as will be explained below, Yosef is the concept of Pleasantness}.