Wisdom Of Fajr Prayer
Fajr is not ‘rise & shine’ time everywhere. For example, in the UK during summer Isha is quite late and Fajr is quite early, so there is not enough time between the two and one has to sleep for a few hours after Fajr.
Following comments of Ghamidi Sahab might be of some help. Please refer to the video below from 28:53 to 34:39 https://youtu.be/RMPWdTKztsU?t=1733
Then if we go deeper why is the Arab being called by Allah at 6 am and me at 2 am for the same salah? What’s the deeper origin of this issue and what does it stem from?