Once the bill has been discharged it will be sent to another committee. Once a bill has been sent to standing committee the first thing the committee does is hold a hearing. This is to consider how the bill should be handled by the committee. Many hearings can be held, and several things happen in hearings. People that might be for or against the bill can testify as to why they feel the way they do about a bill.
Hearings are where the Senators find out information about the bill.
Once they have heard about the bill the Senators in the committee can decide to make changes to the bill. This can be done in different ways. Amend During the hearing process amendments to a bill may be offered. These are to change or add to a bill. These changes make the bill address the issue in a better way or make up for any of the bills shortcomings.