简单问题请教

'两个数组
Private PointSelectedIndexArray1() As Integer
Private PointSelectedIndexArray2() As Integer
'将要定义的数组的数组
Private PSIArray()'不知道这样定义有什么问题
ReDim PSIArray(3)
PSIArray(0) = Empty
PSIArray(1) = PointSelectedIndexArray1()
PSIArray(2) = PointSelectedIndexArray2()我想在以后的语句中这样引用，该怎样实现？
PSIArray(i)(j) = ...