This is fine as long as you have a hierarchy of pages.
So Project Objectives. Or, to put it the other way round, and Objective only has 1 project.
On you Objective you could have a field “Parent Project” of type “Project”.
If you are on an Objective page, then you can just have Icon that does a Redirect to the Project Page. This will send the data … Current Page’s Objective’s Parent Project.
By storing the “parent” on the child thing you can always get back to the next level up (and so on) by simply using the “apostrophe language”.
If an Objective can be part of many Projects, then you either need some sort of linking thing, or store the “Current Project” on the User and send that.