Arcana Coelestia #3123
3123. 'As for me, being on the way' means within a state of truth joined to good in the Rational. This is clear from the meaning of 'the way' as truth, dealt with in 627, 2333, here 'on the way' as the joining of truth to good within the Rational, for this is the subject in this chapter, see 3012, 3013. For someone is said to be 'on his way' when he makes progress in the direction he intends to go.
Foot
The foot, as in Deuteronomy 33:3, signifies an inferior principle. To set the right foot on the sea and the left on the earth, as in Revelation 10:2, signifies that the Lord has the universal church under His intuition and dominion.
(Riferimenti: Apocalypse Explained 10 [2]; Arcana Coelestia 2714)