I realize it has been mentioned already in this thread, but it bears mentioning again.
The active drug compound in Passiflora is Harman(/l). The compound acts as an MAOI.
This means that if you use the Harmal for its drug properties you must consider the consequences, as doctors do not prescribe MAOI type medications unless the benefits outweigh the risks.
If you eat foods which are made of aged protein such as dry aged steak, cheese, soy sauce, cup soups, cold cuts, chocolate, or generally any food which has a 'savory'/'umami' taste you should be prepared to forego all of them for the normally non-toxic monoamines in the foods become potentially quite toxic when Harmal alkaloids are consumed.
The main worry is a hypertensive crisis, splitting migraine, and a trip to the ER.
The compound is in no way innocuous, so bear that in mind when pursuing a regimen.
FWIIW, the native tribes who used the Passiflora for its effects did not consume aged protein as a staple of their diet.