Deb Nelson’s first “aha” moment came as she stood on the pavement outside a Montreal restaurant, struggling to summon the courage to go inside. 

... Montreal resident Tolulope Ilesanmi, company founder and chief executive officer, believes cleaning is as much a spiritual service as a physical act. For the past two years, he has invited executives to tap into a deeper sense of purpose by coming to Montreal and working alongside his professional cleaning crews. Ms. Nelson was one of those pilgrims.