What are the nodes using which the template gets instantiated? - XSLT

What are the nodes using which the template gets instantiated?

- The template instantiation is the part where it can happen either with respect to the current node or using the node list.

- The current node is the sub part of node list and it provides many operations that can be performed on XSLT.

- The instructions change can be dependent on the current node list and the instructions need to be followed using the node list changes.

- The node list changes get built on the new list of nodes and it provides the list to each member associated with it.

- After the instantiation process is over the instruction is said to be completed and the node list is reverted back to the instructions of instantiation.