Why sensual delights & pleasures?

Why does St. Ignatius mention the sins of the flesh alone in Rule 1?

1. Probably from his own experience – recalling his life before his conversion.
2. Sins of the flesh are often more widespread and can be repeated more frequently than others (like impiety, unbelief, murder – which are more grave).
3. Sins of the flesh are often gateway sins to other sins.

See Antonio Denis, SJ, & Fr. Gallagher for more on this…