Hello Everyone -
Direct knowledge results from directly knowing the five aggregates of clinging [form (ruupa), feeling (vedanaa), perception (sa~n~naa), formations (sankhaara), consciousness (vi~n~naana)] in seven ways. Let's take form as example.
1. Knowing what form is : "The four great existents [the earth property, the liquid property, the fire property, & the wind property] and the form derived from them: this is called form."
2. Knowing the origin of form: "From the origination of nutriment comes the origination of form."
3. Knowing the cessation of form: "From the cessation of nutriment comes the cessation of form."
4. Knowing the path of practice leading to the cessation of form: right view, right resolve, right speech, right action, right livelihood, right effort, right mindfulness, right concentration.
5. Knowing the allure of form, i.e., "Pleasure & happiness arises in dependence on form."
6. Knowing the drawback of form, i.e.,"Form is inconstant (changeable, anicca), stressful (dukhha.m), subject to change (viparinaama)".
7. Knowing the escape from form, i.e., "The subduing of desire & passion for form, the abandoning of desire & passion for form".
The above seven direct-knowings are applicable to the remaining four aggregates.
"For any priests or contemplatives who by directly knowing form in this way, directly knowing the origination of form in this way, directly knowing the cessation of form in this way, directly knowing the path of practice leading to the cessation of form in this way, directly knowing the allure of form in this way, directly knowing the drawback of form in this way, directly knowing the escape from form in this way, they are practicing for disenchantment, dispassion, cessation with regard to form, they are practicing rightly".[SN 22.57 : Sattatthana Sutta]
Best wishes.