The Seven Gates

The Seven Gates are what separates The Medium from Skaia. In order to reach each gate, one must build upwards. It is currently unknown of the distinctions between each gate, other than that the difficulty to reach each subsequent increases.

It is feasible that one can simply float or be thrown to each gate, but Nannaquin states that in John Egbert's case it would not serve his purpose well. Apparently there is a reason why building to each gate is important, but it will not be clear until after the First Gate has been reached.