i would suggest to go for the receipe, which uses items like eldritch eyes and maybe more stuff which is needed to get the research to go to outer lands. Else some newbie could just buy the pearl and skip some process on thaum.
its normally a pretty easy thing to do the eldritch eyes arent hard to get if there were eldritch guardians left in the world, then you just have to have the research in thaum to open the gate. its nothing complicated or end game[DOUBLEPOST=1471706731,1471705433][/DOUBLEPOST]You must have read the Crimson Rites and had the Eldritch Revelation in order to preform the Apertis Oculis. 'Opening The Eye' is a ritual to go to the outer lands. To do it, simply place 4 Eldritch Eyes in the centre keystone inside an Eldritch Altar and then infuse 100 of each primal vis from a wand into the altar. To infuse the primal vis into the node you must use a wand (or scepter, staff) holding sufficient vis on the keystone beneath the node. Once this is done, the node will transform into a rift allowing access to the outer lands. The rift itself takes the shape of a black hole surrounded by a purple vortex. This research unlocks the infusion recipe for Eldritch eyes.