They manage their life and make their choices all alone. Interestingly enough Jesus had fasted for 40 days and nights prior to this. He was "poor" hungry and thirsty. But, because his soul was rich with God as he preaches about in the context, he did not fall into the devil's temptations and the devil left him.
The second beatitude pivots around another word with negative connotations, "mourning." Mourning usually carries the idea of survivors grieving after a death. But here mourn has a different meaning. Broadly speaking, mourning is the emotion of sadness. In this beatitude Jesus puts value on sadness. Sadness, he says, will bring blessings. In the first beatitude, you were instructed to become humble, small in your own eyes, and start intensely relying on God. Here I believe the sadness comes from what has been lost in the first beatitude - confidence, peace, joy, and hope - leads to the broken spirit of the first beatitude. .
Here in the third beatitude, again there is a word that gives some negative feelings. On first glance, meek implies weakness. A popular idea of a meek person is one who lacks spirit and courage. A second look at the dictionary yields other and more positive definitions. The meek one is one who is strong but not violent, able to endure injury with patience and without resentment. The meek person of this beatitude is one who is secure, humble, and unassuming. Jesus called himself meek and gentle. It describes a person who is able to handle conflicts and insults without an ego crisis. Jesus said these non-aggressors would inherit the earth. What did he mean? Inheritance is to receive an unearned gift. The recipient is an heir who, without personal effort, takes control and ownership of property as a beneficiary. But it is here - the meek shall inherit the earth. Here "earth" means basically your existence. It is your environment. So the humble and gentle will be given control of their existence and environment.