King David’s ten types of Psalms
In the word בראשית there is אשרי, as in the first word of Psalms, “Happy is the man who does not follow the advice of the wicked…sinners…scornful..”.
The advice of the wicked is referred to the first advice that the Snake gave Eve and connected her to the Tree of Knowledge Good and Bad and the world of lies and chaos.
Psalms 1:1 mention 3 types of connection to negativity. Follow (walk) the wicked, stand by sinners and sit with scornful.
Psalms 1:2 point to only one positive way and it is “The desire for the Torah of YHVH” and live according to it day and night. This is the Tree of Life and the effect of choosing the right system described in Psalms in the verses that follows.
אשרי has the letters of ראש and י, meaning head of the י, which is the Head of the 10 Sefirot. The Zohar refer to Keter in the secret of אהיה אשר אהיה.
When we desire elevation using the Torah, Zeir Anpin to connect to Binah and Chokmah. This connection created a shield of Chessed and allow positive flow from the Light of Chokmah to Malchut.
Rabbi Ashlag teaches that choosing the right environment is the most important for the spiritual work and practical life. You can not be a righteous in Sodom and Gemorah. You have to leave negative places and don’t look back in order to save yourself.
Kind David chose this advice to begin the amazing book of Psalm. This is how important it is. Choose your friends carefully. Even if you put a pure water into a dirty vessel, it will still stay dirty.