First, where does Jesus Christ now reside, in the life of the believer? Inside us; more precisely, in our hearts: “For this reason I kneel before the Father, from whom his whole family in heaven and on earth derives its name. I pray that out of his glorious riches he may strengthen you with power through his Spirit in your inner being, so that Christ may dwell in your hearts through faith” (Eph. 3:14–17). So we should expect to experience Christ within us, as well as “with us,” or alongside us.
Next, is there any aspect of our personal history that is beyond the reach of Jesus Christ? Never. “All the days ordained for me were written in your book before one of them came to be” (Ps. 139:16). Would the faculty of our memory be a realm beyond the understanding of Jesus Christ, or—more important—beyond his access? No. “Nothing in all creation is hidden from God's sight. Everything is uncovered and laid bare before the eyes of him to whom we must give account” (Heb. 4:13). So, Jesus within us is also Lord of our memory.
Finally, if our relationship with Christ or our witness for him in this world is being hindered because a part of our soul is not yet fully under his loving rule, would Jesus want to address that? Of course he would. Remember his fierce intention.