responding to user 000's answer:
The method you cite first is correct. Do not pursue the second. Any
authentic feelings of joy and rapture will arise of their own accord.
Anything forced or willfully attained is not jhana. The first
stirrings of jhana will invariably catch you by surprise and will seem
to come out of no where. We cannot force them ...
"There is the case where a monk — quite withdrawn from sensuality, withdrawn from unskillful qualities — enters and remains in the first jhana: rapture and pleasure born from withdrawal, accompanied by directed thought and evaluation. He permeates and pervades, suffuses and fills this very body with the rapture and pleasure born from withdrawal. There is ...