When Hashem tells Avraham to leave his home and go to the Promised Land, He does not tell him where it is. He simply says he should go: אֶל הָאָרֶץ אֲשֶׁר אַרְאֶךָּ, “…to the land that I will show you.” (Gen. 12,1) Why does He not tell him to which land He wants him to go?
One answer given to this question is that had he been told the name of the land his friends would have tried to discourage him from going. They would have told him it is a barren land; all desert, wild animals, wild people, bad weather and so on.
It is interesting that today when people say they are going to make Aliya and move to Israel people immediately try to discourage them.
When I notified a leader of a Zionist organization that I was making Aliya I got a strange response from him. He was working to help Israel, yet, his remark to me was, “Hishtagata”, “Are you crazy?”
Perhaps they feel guilty for not making Aliya themselves and as a protective justification they try to discourage others. Everyone who can, should do what Avraham did.