Thus, neither the father of the young man would tolerate that his son take a wife in the Aït Ya'za, nor the father of the young girl would accept that his daughter become the wife of an Aït Brahim. 

The two lovers had a pure love for each other, so deep that they could  not live apart. So they  decided to flee to the Isslan mountain.   

Legend has it that their grief was the source of endless tears. So they decided to flee to Mount Isslan; and  when they came there, they sat down and wept because  of the fate that had compelled them to leave their parents, brothers and friends. They cried for days.

The tears they shed soon became two lakes, which  were named after them, Isli and Tislit.

Aware that they had made a serious mistake in fleeing and could no longer turn back, they preferred to drown each in his own lake rather than live apart. They say that every night they come out of the lakes to meet each other.

It was not until the tragic deaths of their two respective members that the two tribes were reconciled. This budding friendship will seal the beginning of  the Engagement Moussems, which has become a major annual event in the Moroccan High Atlas.

A festival such as those we see today, because of its  festive side and a commercial aspect, also  marked by a cultural and social dimension since it perpetuates ancestral traditions.

That's how today the Moussem of Imilchil is  celebrated every year.