What is hijrah?

How can we make hijrahfor the sake of Allaah nowadays?
Praise be to Allaah.
Hijrah (migration) for the sake of Allaah meansmoving from the land of
shirk to the land of Islam, as the Muslims moved from Makkah – before
its people became Muslim – to Madeenah, because it had become the city
of Islam after its people had pledged their allegiance (bay'ah) to the
Prophet (peace and blessings of Allaah be upon him) and asked him to
make hijrah to them. So Hijrah means migratinmg to join otherMuslims.
Hijrah may also take the form of moving from one land of shirk
toanother land of shirk where evil is less prevalent and there is less
danger to the Muslims, as when some of the Muslims migrated from
Makkah, at the command of the Prophet(peace and blessings of Allaah be
upon him), to Abyssinia (Ethiopia).
And Allaah is the Source of Strength. May Allaah bless our Prophet
Muhammad and his family and companions, and grant them peace.
Fataawaa al-Lajnah al-Daa'imah, 12/50