Bhakti means you must engage your senses fully, with more enthusiasm, but it should be for Krsna. That's all. If you want to do business, do it very nicely, but give the profit to Krsna. Yat karosi yaj juhosi yad asnasi, kurusva tad mad-arpanam [Bg. 9.27]. Krsna says, "Give it to Me." That is bhakti. Nothing is stopped, but you cannot do anything unlawful. Bhakti does not mean you can do anything unlawful. But ultimate issue: whatever you do, if it is for Krsna, that is rightful.

>>> Ref. VedaBase => Srimad-Bhagavatam 3.26.28 — January 5, 1975, Bombay