Cross someone’s path – unexpectedly meet someone

A friend in need is a friend indeed A person who helps when we are not doing well or have problems is a true friend, unlike other people who disappear when difficulties arise.

Make friends - form a friendship with someone; develop warm feelings for someone.

Build bridges - to improve relations between people who differ significantly from one another for one reason or another, or who don’t like one another

Friends in high places - one has friends who have important or influential positions.