Natural Magic (Magia Naturalis)

his fortune or misfortune, death, life, sickness, or otherwise; provided that one has the revolution of the year in which the person was born for that purpose.

As to which time must be used for establishing a genethliacal theme: since the beginning of man is threefold: the beginning of sowing and formation, by which bodies begin to be formed from the seeds conceived; the beginning of ensoulment, by which man is animated and quickened; and the beginning of birth, or of emergence, or of parturition, by which he is brought forth into the light? I respond that the moment should be taken from the two extremes—and the birth, or rather both, if both are known for certain; if there is doubt, [the latter] is to be preferred