Crop
Crop is a plant that grows out of the still. It is the ability to rise from the will to receive, our egoistic desire, which is the still. If there is a seed in the still and you give it water, minerals, and the proper cultivation, a plant will grow out of it—the next degree in the evolution.
Everything emerges from the still. The will to receive is the general substance, and the forms that come out of it—vegetative, animate, and speaking—are forms of the desire to bestow together with the will to receive. The will to receive gives all the substance. If, for example, the form is vegetative, its next form will be an animal, followed by the speaking form.
Blessing
The blessing is the upper force that comes from Bina. Bet is Beracha (blessing). Without this upper force, there is no growth. It is similar to water, which represent the force of Bina in our world.
Promise
This is the promise that Joseph was given that he would be able to come out of Egypt. The big problem is how to work with our egos and be certain that it does not “swallow” us down the line. This is why Joseph was told, “Go down to Egypt for a certain time and then return to the land of Israel with great substance.”
Weeping
Weeping is a state of Katnut (smallness/infancy), when one shifts from state to state. In between, one must be “small,” like an embryo, or like a newborn baby that is crying. These are signs of Katnut. At that stage, a person still has no Mochin (Light of Wisdom); one still does not understand where one is or why one exists. Such a person is in regret, in plight, in a narrow place where there are insufficient Hassadim (mercies), hence the crying.
Slave
A slave is our desire. In general, we always speak only about the desire. The whole of creation is but one will to receive divided into 613 desires. A slave is one of those desires, which is under the complete control of below. It is below either on the side of Pharaoh or on the side of the Creator. that is, either it is a servant of the Creator or a servant of Pharaoh. It cannot be in the middle.
From The Zohar: Take Wagons … for Your Little Ones
Israel were under the rule of this heifer for REDU (Gematria, 210) years when they were in Egypt. …It was only in order to scrutinize that wagon, which is VAK of the left, that Israel were under the Klipa of Egypt for several times and several years, as more than this measure, called “wagon,” is forbidden to take out of Egypt.
Zohar for All, VaYigash (Judah Approached), item 112
Our exile was to last 400 years, like four Behinot (discernments), but we spent only 210 years in exile. This is the root of all the other exiles.