The length of time you’ll want to stay in the first jhāna is inversely proportional to the intensity of the pīti. In other words, if the pīti is very strong, you probably won’t want to stay there very long. Half a minute or so might be sufficient, maybe even less than that if the pīti is seriously intense. If the pīti is not so very strong, then you might want to stay there five to ten minutes.
