Collect oneself and Lay down

Lay down and collect oneself are semantically related In some cases you can use "Lay down" instead a verb phrase "Collect oneself".

Lay down verb - To put into effect through legislative or authoritative action.

Collect oneself and lay down are semantically related in relax topic. Sometimes you can use "Collect oneself" instead a verb "Lay down", if it concerns topics such as be or feel at ease.