This Sunday is Trinity Sunday. Christians remember and honour the eternal God: the Father, the Son, and the Holy Spirit. Trinity Sunday is celebrated the Sunday after Pentecost, and lasts only one day, which is symbolic of the unity of the Trinity. The Father loves the Son and Jesus loves the Father, and from their love the Holy Spirit bursts forth to give life to the world. The love between them is so strong, even though each is an unique and individual divine being, they act and love as one.