Zohar Shelach Lecha
“זֶה רָע, בְּכֹל אֲשֶׁר-נַעֲשָׂה תַּחַת הַשֶּׁמֶשׁ–כִּי-מִקְרֶה אֶחָד, לַכֹּל; וְגַם לֵב בְּנֵי-הָאָדָם מָלֵא-רָע וְהוֹלֵלוֹת בִּלְבָבָם, בְּחַיֵּיהֶם, וְאַחֲרָיו, אֶל-הַמֵּתִים”
“This is an evil in all that is done under the sun, that there is one fate for all men. Furthermore, the hearts of the sons of men are full of evil and insanity is in their hearts throughout their lives. Afterwards they go to the dead.”
We continue with the study of the wisdom of King Solomon. The Zohar explains that the evil done under the sun leads to death.
The sun is the aspect of Zeir Anpin and under the sun is Malchut. Evil in Malchut is the outcome of actions that disconnect us from Zeir Anpin and the Tree of Life. It is also evil when we misuse the Light we receive. This is the aspect of spilling seeds. They come from the Light and if they are not transferred to a proper vessel they are taken by the negative side and that is death.