Question: What is a “Seah”— a required measure of effort after which a person enters the spiritual world? Who determines this measure? According to what signs is it possible to examine that I have filled it?
Answer: The measure of effort (Seah) is determined according to spiritual levels. There are 125 levels that establish the relationship between the Lights and the Kelim (vessels) and the conditions for passing from level to level. On the level of this world, all of the still is equivalent to one vegetative, all of the vegetative is equivalent to one animate, and all of the animate is equivalent to one “speaking.” And on the next level, all of the speaking is equivalent to one spiritual still, all of the still is equivalent to one vegetative, and so on.
But how is it possible to perceive a relationship like this in order to equate all of us together to one component of the higher level? The Creator organizes and arranges our group this way, cleaning out all of the people who become waste within it and leaving all the rest in such a form as we have now. And it even leaves among us people who don’t hear advice about how it is necessary to work, but the main thing is that those who hear will connect into a single whole. This is what is called, “the entire level of the still is equivalent to one vegetative.”
When we try to connect into one, then the Upper Light acts on us and truly connects us with an inner connection. And then we rise to the next level.
From the 3rd part of the Daily Kabbalah Lesson 9/27/13, Talmud Eser Sefirot