Arcana Coelestia#8181
8181. 'And let them travel on' means a further stage, continuing until their preparation has been accomplished. This is clear from the meaning of 'travelling on' as a stage further and a continuation, dealt with in 4375, 4554, 4585, 5996. For this directive to travel on means that there should be no cry from them, that is, no pleading, but that the journeying should be continued towards the Sea Suph, and then through it towards the wilderness, that is, through hell, which they will pass through in safety, towards a succession of temptations continuing one after another, until their preparation has been accomplished. For the meaning of 'the Sea Suph' as hell, see 8099, 8137, 8148, and of 'the wilderness' as a state for undergoing temptations, 8098.
Arcana Coelestia#4375
4375. 'He said, Let us travel on and go' means a further stage, that is to say, in the joining together of good and truth. This is clear from the meaning of 'travelling and going' which, it is evident, implies progress towards things that stand further away. For progress and a stage further are contained in the internal sense of the phrases that follow next.