What do angels always do?

Relatives and dear ones often come from the unseen to help and protect you, but the angels always do. 

Yet they have never been allowed to make themselves visible except at a few times of very special needs. 

In ways unrecognised by you, these unseen helpers influence you towards holy thoughts and incline you towards good conduct. God's spirit, dwelling in your heart, completes that work for the perfecting of your spiritual life.