Can someone explain this to me this passage from Murakami's "Change Traveler"?

[Armando Turbiglio]

Blind Willow, Sleeping Woman Hello, how do you interpret this passage from Murakami's "Chance Traveler" story: “I’m in no position to hand down any advice,” he said, “but there’s a rule I always follow when I don’t know what to do.” “A rule?” “If you have to choose between something that has form and something that doesn’t, go for the one without form. That’s my rule. Whenever I run into a wall I follow that rule, and it always works out. Even if it’s hard going at the time.”

[Saskia]

Isn’t that about choosing between whatever that is clear and obvious... and the unknown/uncertain path?

[Felix]

I would interpret it like he only chooses abstract things over materialistic things? for example, love over a new sports car.

[Saskia]

I think.. it is choosing the wellknown threaded path.. which everyone takes.
Versus the path of the unknown.. where anything can happen.

[Saskia]

Editing a comment could be SO useful.

I meant... choosing between both paths.
Not choosing the well known path but the other one.. where anything can happen.

The road less traveled. Which might be harder in the first place... but brings something new and different.

Whereas the well known road... leads you were all others have gone. To familiar places and situations.
Might be easier... but you’ll walk the same circle over and over again... each time coming back to where you were before.