<xsl:apply-templates select node text subnodes all

<xsl:apply-templates select="node/text()|subnodes/all">

This XSL instruction is used to apply a template to a set of nodes. It is often used to traverse a DOM tree in search of a specific node or nodes. The "select" attribute is used to specify the nodes to which the template should be applied. In this example, the instruction is being used to apply the template to the child text nodes of the "node" element, as well as all of the "subnodes".