What was narrated concerning sitting in the graveyards Sunan Ibn Majah 1549

Arabic hadith text
حَدَّثَنَا أَبُو كُرَيْبٍ، حَدَّثَنَا أَبُو خَالِدٍ الأَحْمَرُ، عَنْ عَمْرِو بْنِ قَيْسٍ، عَنِ الْمِنْهَالِ بْنِ عَمْرٍو، عَنْ زَاذَانَ، عَنِ الْبَرَاءِ بْنِ عَازِبٍ، قَالَ خَرَجْنَا مَعَ رَسُولِ اللَّهِ ـ صلى الله عليه وسلم ـ فِي جِنَازَةٍ فَانْتَهَيْنَا إِلَى الْقَبْرِفَجَلَسَ وَجَلَسْنَا كَأَنَّ عَلَى رُءُوسِنَا الطَّيْرَ ‏.‏
Translation
It wasnarrated that Bara’ bin ‘Azib said

“We went out with theMessenger of Allah (ﷺ) for a funeral, and we came to a grave. Hesatdown and we sat down, as if there were birds on our heads.”