What is the connecting link between the Gita’s ninth and tenth chapters?

From Ramabhadra Priya P:

As you mention in your classes, there is no spur for the lord to speak, as He is in ecstasy and continues to speak to extol the glories of Bhakti. That is the link you mention for chapter 9 to chapter 10. Is it also true that when lord spoke 9.34, the most confidential knowledge, now in order to show how to execute this most confidential knowledge, He explains chapter 10.  Arjuna also makes the same request 10.17.