diff --git a/src/Database/Ability.php b/src/Database/Ability.php
index 352f1f59..fc56263c 100644
--- a/src/Database/Ability.php
+++ b/src/Database/Ability.php
@@ -118,6 +118,9 @@ public function scopeForModel($query, Model $model, $strict = false)
                     $query->orWhere('entity_id', $model->getKey());
                 }
 
+                // If the model does not exist, we want to search for blanket abilities
+                // that cover all instances of this model. If it does exist, we only
+                // want to find blanket abilities if we're not using strict mode.
                 if ( ! $model->exists || ! $strict) {
                     $query->whereNull('entity_id');
                 }