muslems

Regarding the issue, Ahl al Bayt1 (pbu th) presented some reasons for The Occultation:

1-    Protecting the Imām (mGehr)’s life from the enemies’ dangers/ detriments.

[In this relation,] Zurārah2 narrated from Imām Ṣādiq (pbuh): 

إِنً لِلْقَائِمَ غَیْبَۀِ قَبْلُ ظُهُورِهَ قُلْتَ وَ لِمُ قَالَ یَخَافوِ أَوْمَىبِیَدِهِ إِلَىَ بَطْنِهُ قَالزُرَارَۀَ یَعْنِیاَلْقَتْل

Indeed, the Qā’im will be absent before his appearance.