Laws or not, I slammed my mind against the barrier of the now.

At once he saw the tall brown-skinned man against the barrier.

I struggled for two more steps against the mounting barrier.

He leaned against the barrier they had built to cover the door.

Then came a blow, as something smashed against the barrier.

She leaned back against the wooden barrier and heard it again.

She looked down, meaning to walk on, then saw him, there at the front, leaning against the barrier.

Right up against the barrier of the ion field, she looked it over carefully.

In a last effort, she flung the whole force of her mind against the barrier he had erected.

She kept her hand against the barrier and moved from one side of the tunnel to the other.