A grand jury is a group of 12 to 23 people who listen to the evidence about a crime. If most of the people on this jury think that there is enough of a suspicion that this person may be guilty, then that person is indicted, or accused. You cannot be forced to make a statement under oath that shows that you are guilty. The government cannot just take land or any property from you because it is going to be used for a government building, highway, etc. You have to be paid fairly for that property.
People have the right to legal counsel.
People have the right to confront their accusers. Without the right to a speedy trial, a person could be locked up for a very long time without ever even hearing the charges against him. Legal counsel means a lawyer. Everyone has the right to have a lawyer, even if they can't afford one. The government has to provide one to help defend poor people accused of a serious crime.