They may be insubstantial things," he said.

The three ptera combined would mass no more than Orn alone, for they were insubstantial things despite their monstrous wingspan.

Water seemed such an insubstantial thing.

It was difficult to sleep with the thought that a thousand mysterious deaths lay all about, separated from him only by that insubstantial thing, time.

Time," said the Speaker, "time is such a fleeting, insubstantial thing.

Entities without wings, insubstantial as dreams, you ephemeral things, you human beings:

As he explained, a sequin on its own is a tiny, insubstantial thing.

In space even insubstantial things could-- The idea was so simple it startled him.

The words represented such an insubstantial thing.

Once he was a Jedi Knight, fighting against things so dark and insubstantial he could not identify them.