Says the Arizal must be careful to say every day the perek shira, because all the creations in this world have a minister in heaven, as Jazal said you did not take a plant that does not have a caretaker on him and hits him and says "Grows", and through that minister sends abundance and blessing to the world and he can not fulfill his role until they say shira, and by the shira receives the forces to influence in this world.

"Everyone who takes care of the perek shira has the merit of seeing the divine chariot, has merit of good life like the days of Mashiach." (Siach Vitziak)