There is no historical or theological source describing the change of qibla (prayer direction) from Jerusalem to Mecca as a "symbolic break with the past."
The qibla change occurred in 624 CE (2 AH), ~16 months after the Hijra, per Qur'an 2:144. It signified:
It was a divine command, not a human symbolic gesture. The phrase "symbolic break with the past" does not appear in classical tafsir, sira, or hadith literature.