The right to be secure in your own home against the government is so old it helped spark the American Revolution, and it is the reason police usually need a warrant to come in.
Search and seizure refers to the government examining your person, home, or property and taking evidence. The Fourth Amendment protects against unreasonable searches and seizures, generally requiring a warrant backed by probable cause.
The grievance behind it was real and recent for the founders. British authorities had used writs of assistance, open-ended general warrants that let officers search any home or business at will, hunting for smuggled goods. Colonists despised them.
The lawyer James Otis argued against these general warrants in a famous 1761 case in Boston. John Adams, watching, later said that then and there the child Independence was born. The fight over searches helped ignite the Revolution itself.
The Fourth Amendment answered it by requiring particularity: a warrant must describe the specific place to be searched and the specific things to be seized. No more blank checks for the government to ransack a home on a hunch.