“[The Ohr HaChaim writes that] there is kedusha [holiness] in every part of creation: in the rocks, trees, and animals…. Kedusha is everywhere. It’s just a question of concentration, the level of kedusha.

Sefer Yetzira [explains that at the revelation of Hashem at Har Sinai, the mount was all in ashan (smoke). The word ashan is composed of] three letters [Ayin, Shin, Nun, standing for]: Olam, Shana, Nefesh. These three encompass the entirety of creation. Olam is the physical world… Shana is time, [which is] described as a creation… And Nefesh is humankind.

In each of these three realms, there is a nekudat kedusha, a point of utmost holiness, and from there, it is reflected and emanates outward until the lowest level of creation.

…

What is kedusha? It is yichud, [meaning] dedication, devotion… dedication to HKBH… Everyone, in his own way, …is supposed to live for HKBH and devote all energies, powers, thoughts, deeds, [acting according to the Will of Hashem as expressed through His Torah. This makes us holy].”