With a Sincere Heart

With a Sincere Heart:

Rashi says that he saw that the doors of their tents did not face each other.

The Kobriner Rebbe zy”a explains that Bilaam saw that each Yid had his personal derech of serving Hashem. Each one followed his heart to serve Hashem in his own way. Their tents did not face each other in the sense that no one copied anyone else; rather, each one found his own path to serve Hashem. When Bilaam saw this, he knew that they were worthy of being blessed.