Children's imaginations don't work less well because their bodies do. This summarizes MinStoraDag's guiding principle. MyBigDay helps seriously ill children in Sweden to realize their dreams. The children don't care about research and progress, about money and new treatments. Their thoughts revolve around play and living as normally as possible. They may dream of driving a race car, meeting their idol, travelling, having a 'princess room' or driving a digger. The wish may be big or small, but the happiness they feel when their dream is fulfilled is the same. MinStoraDag works with all university hospitals and many pediatric and adolescent clinics in Sweden. The selection is made by the attending physician or healthcare professional and all applications are treated individually. Hundreds of StoraDag events are organized every year. In addition, group activities such as concert visits, hospital cafés and camps are organized. In 2011, 550 projects were carried out across Sweden, including 214 individual Big Days. More than 2000 children were given a much-needed break from sickness.